"Choose! Skill level up!"

After examining the newly acquired two Fifth Tier professional skills, Zhang Yanhang immediately began to trigger the related upgrade options. Time pause was instantaneous, and what appeared along with it was a longer text choice box.

[Do you want to enhance the skill level?]

[Option One: Upgrade 'Gun Mastery·Original LV.6' to 'Gun Mastery·Original LV.7' (Consumes 26,214,400 Soul points.)]

...

[Option Five: Upgrade 'Limitless Universe Skill[4th Tier]LV.MAX' to 'Limitless Universe Skill[5th Tier]LV.1' (Consumes 11,700,000 Soul points.)]

...

[Option Eight: Upgrade 'Supreme Will LV.MAX' to '???' (Cannot be enhanced)]

...

[Option Ten: Upgrade 'Heavenly Earth Form · Original LV.6' to 'Heavenly Earth Form · Original LV.7' (Consumes 26,214,400 Soul points.)]

[Option Eleven: Upgrade 'Three-Headed Six-Armed LV.MAX' to 'Three-Headed Six-Armed[Mutated·Eight Arms and Eight Feet]LV.5' (Consumes 1 Ash Source, 1 Legendary Essence, 6,553,600 Soul points.)]

[Option Twelve: Upgrade 'Heaven and Earth Devourer·Original LV.6' to 'Heaven and Earth Devourer·Original LV.7' (Consumes 26,214,400 Soul points.)]

[Option Thirteen: Upgrade 'No Taboos LV.MAX' to '???' (Cannot be enhanced)]

[Option Fourteen: Upgrade 'Heavenly Mastery Dominator Body LV.1' to 'Heavenly Mastery Dominator Body LV.2' (Consumes 819,200 Soul points.)]

[Option Fifteen: Upgrade 'Eternal Demon Body LV.1' to 'Eternal Demon Body LV.2' (Consumes 819,200 Soul points.)]

"Although I had anticipated that the upgrade requirements for the Limitless Universe Skill would be high, I didn't expect that just advancing from Fourth Tier to Fifth Tier LV.1 would require 11.7 million Soul points. I initially thought perhaps only around 10 million would suffice. I indeed underestimated the upgrade requirements of the Limitless Universe Skill."

Zhang Yanhang remembered that previously upgrading the Limitless Universe Skill to Fourth Tier LV.MAX consumed 9.7 million Soul points. Therefore, this 11.7 million Soul points requirement is actually equivalent to an additional 2 million on top of the prior upgrade requirement.

And unsurprisingly, based on Zhang Yanhang's past experiences, this 2 million will likely be a new upgrade base for the Fifth Tier, and each upgrade henceforth is estimated to increase the Soul point requirement by at least several million.

"If we calculate like this, since just advancing to Fifth Tier LV.1 already requires nearly 12 million, to further upgrade to LV.2 would require at least twenty million Soul points, possibly approaching thirty million. Indeed, the upgrade demand is beyond what I can afford."

Zhang Yanhang estimated that with his current Soul point balance of less than one hundred million, he probably can't even meet one-third of the upgrade requirements for the Limitless Universe Skill. Therefore, like with the Heavenly Destiny Master's profession level, he would attempt to upgrade only two levels this time to test the waters.

"But compared to the Limitless Universe Skill, the Three-Headed Six-Armed skill is more important. In the end, Heaven does not disappoint the diligent. Under my persistent hints, the multiple-choice system finally unlocked the new upgrade stage for the Three-Headed Six-Armed."

Of course, apart from the hints, Zhang Yanhang believed that the improvement in strength of the multiple-choice system brought about by the advancement in rank also played a significant role.

"However, although I can indeed upgrade it, why does the Three-Headed Six-Armed appear somewhat abnormal? Could it be that my hint forcibly unlocked the new stage upgrade, causing some problems?"

Currently, all of Zhang Yanhang's skills have four-character names, and he has never seen a skill like [Three-Headed Six-Armed[Mutated·Eight Arms and Eight Feet]LV.5] with a parenthetical note at the end. Moreover, the note openly indicates a mutation.

"Since a mutation is noted, there should surely be some special changes in the Three-Headed Six-Armed skill after upgrading, but change is change, as long as it can be upgraded."

Zhang Yanhang is very eager to grow more heads and arms. Therefore, even if he becomes a tentacle monster due to mutation, he's actually okay with it. After all, he's already accustomed to transformation techniques, and it's merely a matter of modifying his appearance after shrinking in size, which isn't too troublesome.

Well, it could potentially lead to some adverse effects, but he's willing to endure if the effects are minor, like avoiding releasing some weird white viscous liquid from his tentacles during a fight with a Magical Girl.

As for why Zhang Yanhang firmly believes his hints were effective, it's naturally because his hints truly worked. For example, the Eternal Demon Body is a skill clearly chosen due to his persistent hints to the multiple-choice system.

Since obtaining the Life Ring, Zhang Yanhang has been constantly hinting for the multiple-choice system to grant him something that could utilize life value recovery speed, similar to the Heaven and Earth Devourer skill. After his rank promotion, he indeed received the Eternal Demon Body, which allows him to deal damage and absorb blood based on life value recovery speed.

"All my efforts, repeatedly lamenting the uselessness of the Life Ring daily, and flogging it for its inability to upgrade life value were not in vain."

Zhang Yanhang believes that he needs to continue increasing the intensity of such hints (or clear indications) since the multiple-choice system occasionally fails to understand his intentions, necessitating thorough, comprehensive, and transparent expression of his real desires to the multiple-choice system.

Indeed, based on past and current experiences, those tendencies prove effective since the multiple-choice system, after all, stems from his Awakening Talent, which should follow his desires more closely.

Of course, if his desires are too far-fetched, the multiple-choice system cannot fulfill them. For instance, since the First Tier, he has longed for quick retirement, yet the multiple-choice system has never provided an option for instantaneously becoming invincible globally and enjoying a splendid retirement.

Therefore, based on this theoretical foundation, Zhang Yanhang felt that the initial Three-Headed Six-Armed was likely a special skill like Supreme Will that could only be upgraded but not promoted.

After all, upon reaching LV.MAX, he indeed grew three heads and six arms, perfectly matching the skill name, so perhaps it's normal that it cannot be further enhanced.

But now, Multiple Choice has forcibly created a mutated version of the Three-Headed Six-Armed for him to upgrade, under his strong determination. It can only be said that Multiple Choice is indeed too good for him.

"This Eight Arms and Eight Feet following the mutation looks somewhat familiar."

It is indeed familiar, so after a simple thought, Zhang Yanhang recalled that, like the Three-Headed Six-Armed, Eight Arms and Eight Feet is actually also an idiom derived from Chi You, though it is very obscure.

As for the meaning of Eight Arms and Eight Feet, it is quite literal, referring to eight humeri and eight phalanges. Humeri naturally refer to the humerus of a vassal, which is colloquially known as the left and right arms. From a biological perspective, the humerus is the bone connecting the shoulder and forearm, commonly known as the upper arm.

The phalanges are likewise literal, being a bone near the foot, historically used as a synonym for 'foot'.

So, from a literal perspective, Eight Arms and Eight Feet means eight hands and eight feet or eight arms and eight legs, as hands and feet cannot exist independently and need to be connected to the body; otherwise, having eight hands and eight feet floating around would be like light wings unleashing floating cannons, wouldn't it?

Besides, Zhang Yanhang remembers that Eight Arms and Eight Feet are actually followed by a 'Sparse-Headed', linking them as 'Eight Arms and Eight Feet Sparse-Headed'.

Regarding the meaning of Sparse-Headed, it is similarly literal. Specifically, the 'Sparse' in Sparse-Headed means estrangement, but it can also mean stretching, simply put, Chi You's heads are distanced from each other, spreading out like leaves.

And if there was originally only one head, then unless Chi You's head, like the biochemical monsters in the Umbrella Biological Experiment Zone before, could split into eight parts, they absolutely couldn't be distanced from each other.

Therefore, the normal explanation is only one: Chi You owns heads corresponding to the extra arms and legs, allowing the extra heads to spread out like leaves.

"So, from this perspective, this Eight Arms and Eight Feet is completely an evolved version of Three-Headed Six-Armed, possessing eight arms and hands, and most likely even four heads.

Could it be that after mutating Three-Headed Six-Armed into Eight Arms and Eight Feet, I could also grow a few more legs? This surely is more useful than simply promoting the Three-Headed Six-Armed."

Zhang Yanhang had always felt his lower body was a bit weak, and now he can finally remedy this weak point, and if he can indeed grow eight legs, there will certainly be numerous equipment slots to use.

After all, lower body equipment is quite abundant; only before, maybe Multiple Choice thought the demand wasn't large on his side, so not many related pieces of equipment were available. Once Multiple Choice exerts, all equipment slots, no matter how many, could potentially be filled quickly.

"Furthermore, aside from eight legs, it looks like this Eight Arms and Eight Feet can also increase the number of arms and heads."

If it can indeed be increased, then there must be a bunch of additional equipment slots, and Zhang Yanhang could boost his strength significantly again through these new equipment slots, with various hand and head equipment, for instance.

"Currently, if I want to mutate Three-Headed Six-Armed into Eight Arms and Eight Feet, I need to consume one Legendary Essence and one Ash Source, and then over six million Soul Points. Though this promotion is special, the upgrade requirements are unchanged, typical for skill promotion."

For such a promotion requirement, Zhang Yanhang has already promoted double-digit numbers during Fourth Tier, so he's quite familiar.

"Moreover, unlike previous tiers, I might have been troubled at the beginning of tier promotions over not having enough Legendary Essence and Ash Source to promote straight away, but now this problem doesn't exist at all."

Previously, thanks to Dual-choice plundering a massive amount of Legendary Essence and Ash Source from Ashen Treasure Box and Lord's Treasure Chest during the Fourth Tier, even after using up four Legendary Essence and ten Ash Sources for promotion, he still has eleven Legendary Essence and eighteen Ash Sources at hand.

You could say, with such an abundance of Legendary Essence and Ash Source, let alone promoting skills; if he could bolster his Profession Level to LV.50, it might suffice for promoting the tier directly. Of course, due to the current Ash Source shortage, this ambition is entirely unrealizable.

If not used for tier promotion, these eleven Legendary Essence and eighteen Ash Sources are almost enough to promote all skills he holds.

Therefore, to him now, previously scarce Legendary Essence and Ash Sources are abundant, while previously abundant Soul Points are now scarce, flipping their usual relationship.

"If leveling from Three-Headed Six-Armed to Eight Arms and Eight Feet LV.5 just needs over six million Soul Points, this Three-Headed Six-Armed skill should have normal skill upgrade requirements.

Based on my experience, being normal means that I should only need to spend at most twenty million Soul Points to elevate it to LV.6 and unlock related Additional Attributes later."

Though LV.MAX is currently out of reach for Zhang Yanhang, he believes LV.6 should allow him to enjoy part of the Eight Arms and Eight Feet skill effect, such as growing a few more legs.

Besides the crucial Eight Arms and Eight Feet, Zhang Yanhang also noticed that after promoting to Fifth Tier, Supreme Will still didn't unlock new promotion options, remaining at its original LV.MAX state.

As for the initially LV.MAX most special No Taboos skill, it also currently cannot be enhanced further.

Previously, Zhang Yanhang had mildly hoped that No Taboos might, like Three-Headed Six-Armed, unlock some promotion after advancing to Fifth Tier, but as it turns out, he was thinking too much; such initially LV.MAX special skills are probably even harder to upgrade than Supreme Will.

Of course, it might just be that the current Talent Strength of his Multiple Choice talent isn't high enough to promote, so thinking optimistically, maybe upon promoting to Sixth Tier, it might get unlocked?

Zhang Yanhang thinks that, as he persistently hints at Multiple Choice with the Three-Headed Six-Armed skill, perhaps someday Multiple Choice will be merciful and casually unlock the promotion option for No Taboos too?