Fast Feet can attach Underground Worms to its body surface, and these pale red glowing sheet-like creatures bring a comfortable warm sensation.

It continuously collects these worms, attempting to cover its body as completely as possible.

The Underground Worms do not resist, sticking tightly to it as if they also enjoy this environment.

However, aside from warmth, they do not bring much change.

Unlike the Cosmic Heart described by the Giant Bone Fish.

"You have to do it like me,"

Good brother Big Mouth said: "Feet, you're on the wrong path; the heart must be eaten up to the belly, more is better. The belly can hold a large number of Underground Worms, unlike the body surface where they're too scattered, and the heat would leak outward."

Its method is to inhale a large quantity of Underground Worms, accumulating a massive swarm within its skeletal cavity. So when opening its mouth, one can see the dazzling bright red light within Big Mouth's throat.

"These Underground Worms fill the body, producing a strong energy gathering effect."

"I can feel them continuously absorbing energy from the outside world, then converging it within the body, though the temperature is a bit high. Fortunately, they can wrap the high-temperature core so that it won't harm the bones."

"Try my method."

Big Mouth is correct.

But Fast Feet also doesn't think it's wrong.

Underground Worms cover the Light Shoot Muscle, forming a layer of red insect clothing. Fast Feet discovers that its original muscle suit, like a protective shell, becomes soft.

Under the continuous energy effect of Cosmic Rays, this layer of muscle suit changes into a kind of adhesive fluid.

The Light Shoot Fluid also makes the bones more thoroughly protected, filling every gap completely, with the Light Shoot Muscle being squeezed and adhered as the bones move and act.

Now, the Light Shoot Suit becomes genuine muscle, and the insect clothing becomes a layer of skin.

Fast Feet transforms into a red Rocket Bone Fish.

Not long after.

Fast Feet and Big Mouth both believe they've achieved their goal and thus call out Earth Ghost's name.

A mountain-like body appears once more in the darkness, the cold four-eye sockets scrutinizing the two weak, young counterparts.

Its gaze first focuses on Big Mouth: "You, not bad."

"Cosmic Heart preliminarily completed."

"The next stage is to learn to make it beat, resonating with your body's movement."

The Giant Bone Fish turns its gaze to Fast Feet: "As for you, the direction isn't correct."

"Underground Worms on the outside will result in significant energy loss. They can't store energy, only absorbing a negligible small portion. So they only absorb and then filter out, like a constantly tightening and relaxing sieve."

"You need to learn to absorb them into the body."

"Inside the body, they will ingest the Cosmic Rays—at least this process is quite powerful—then filter them. The Bone Fish's internal structure can store considerable energy, relying on this energy to continuously strengthen the bones."

"But by attaching them outside like you do, absorbing in large quantities on the body surface, due to their filtering out, only a billionth is actually usable. Inefficient and slow."

"Moreover, any energy you obtain from nature will be divided by them and then filtered out. This is quite unfavorable for you. Dismantle them early, not letting them affect your energy operations on the body surface."

The Giant Bone Fish's judgment is incisive.

Big Mouth is like having an industrial-grade Floating Heart installed inside, flying directly, transforming into a Bone Fish battleship. Yet Fast Feet remains stagnant, improving minimally.

Absorbing is easy, dismantling is difficult.

Underground Worms cling tightly to the Light Shoot Muscle Suit, like clinging to a life-saving job, unwilling to let go. The more numerous they are, the tighter they connect and unite.

Fast Feet exerted a lot of effort to dismantle a small part of them, also causing it to lose a large portion of Light Shoot Muscle, tearing out a gap, grieving immensely.

Meanwhile, Big Mouth has already learned heart synchronization.

After synchronized vibration, the heart's energy can be emitted outward through the mouth, becoming a strong ability.

Big Mouth spews out light columns in the ocean, penetrating large ice layers, having great fun.

Fast Feet, however, is still laboriously dismantling worms.

It can't help but think, if only it was still in the company.

Trainers or Bone Men could easily use tweezers, chisels, hooks, and other tools to take down those barnacle-like creatures from its body surface, avoiding such a strenuous effort of tearing.

Bone Fish has no hands or feet, making such delicate and precise work difficult, with excessive strength tearing and damaging its Light Shoot Muscle Suit. Leading to artificial muscle ulceration and reduction, not worth the loss.

However, one day.

Fast Feet suddenly discovered that it heard a strange sound.

Someone whispering softly.

[Open the Sun…]

This sounds somewhat eerie.

The Sun isn't a box; how can it be casually opened?

Fast Feet therefore consulted the Giant Bone Fish.

The Giant Bone Fish, upon hearing this, displayed unprecedented seriousness.

"Where is this voice coming from? Try to identify its transmission location."

Fast Feet tries hard to use its body to feel.

Then it astonishingly discovers that the voice comes from the skin made up of insect clothing, from the Underground Worms.

"The underground worms are speaking to me, they want me to open the sun."

"It's not them."

The Giant Bone Fish said, "Underground worms are primitive organisms, without intelligence, possessing only basic energy absorption and self-perpetuation."

"The underground worms have completed a full coverage connection on your surface, they have amplified and continually transmitted information from the cosmic rays to you through the conduit of bone."

"The source of this voice is that..."

The Giant Bone Fish seems to know some secrets.

"What is that?"

"You are not qualified to know yet. Without the corresponding capability to touch certain things, it will only bring fear and danger."

The Giant Bone Fish warned like a seasoned elder.

But those four fiery eyes once more gazed at Fast Feet: "I take back my previous words. Your direction may indeed lack the energy intensity of the path me and Big Mouth pursue, but it has a special advantage in the reception of cosmic ray information."

"Now you have two choices."

"One is to switch to the heart direction, this path to enhance energy intensity was created by me. You and Big Mouth can follow this path, with my guidance, it's safe, becoming a Light Core Body is not an issue."

"The second choice is to follow your current insect clothing skin direction, going the route of collecting and amplifying cosmic ray information. But what outcome or risk this will eventually bring, no one knows, you can only try and take a risk yourself. Yet there might be a unique opportunity."

Fast Feet thought about it.

He enjoys collecting various items.

He particularly likes a quote from the chairman.

—Trash is just treasure not placed correctly.

The signals in the cosmic rays are like a super broadcast covering space, perhaps many new things can be obtained from it, it's a realm Bone Fish have never set foot in.

No need to mention anything else.

This time he heard there's something inside the sun.

Maybe every celestial body is a treasure box, containing different treasures.

He could tell the company in the future, let the company explore and hunt for treasures.

Collecting treasures on a cosmic scale!

Fast Feet said without hesitation: "Mr. Earth Ghost, I want to try my own path."

"Are you prepared to face the danger?"

"Yes."

"But I have a question."

"Speak."

Fast Feet asked, "Can't I construct the underground worm skin externally while constructing the cosmic heart internally? This would mean having both."

"That is the path to destruction."

The Giant Bone Fish said, "Our relationship with underground worms is akin to that between a tree and vines. Underground worms are extremely primitive yet powerful organisms, their biggest difficulty is their inability to store energy. The red flakes you see are the result of numerous underground worms gathering and combining with natural salts."

"However, with our bodies serving as carriers and land, their originally drafty bodies can store energy in us, and use it when necessary. This is driven by instinct and necessity for survival."

"If you attach large quantities of underground worms both outside and inside, their energy will gradually permeate and transform the body into the salt structure they require... unknowingly, you will lose movement and self-awareness."

"This approach has been tried on Earth before by underground Bone Fish, ending as salt minerals, completely reduced to material nutrients and carriers of underground worms."

"Excessive usage is dangerous. So I require you to control it within your own heat tolerance range."

The Giant Bone Fish said sternly, "Even following this insect clothing direction, itself still carries great risk, don't joke with your life."

"Understood, Mr. Earth Ghost."

Then.

Fast Feet and Big Mouth followed the teachings of the Giant Bone Fish, began training and growing in their respective directions.

After some achievements.

One day.

Fast Feet and Big Mouth together said to the Giant Bone Fish they want to return to the company, as their leave had exceeded the duration. Going away without notice would cause many troubles for others and also affect the maintenance work on the satellite.

The Giant Bone Fish couldn't understand: "What's this company, you're so eager to return?"

The two Bone Fish said, "We grew up in the company, the company is our home, the chairman is like our guardian."

"..."

Fast Feet said, "If you need us to do something for you, we will first go back and inform the chairman, to prevent him from worrying."

Big Mouth also explained, "Our vacation has been prolonged for too long, we have to return to cancel our leave and write a situation statement, otherwise we'll be fired! Once that's done, we'll come back to visit you."

This made the Giant Bone Fish suddenly become furious, the entire ocean trembled and roared: "Lack of ambition! Unappreciative! I'll send you back! Get out, get out!"

A purple light enveloped Fast Feet and Big Mouth.

Then the two Bone Fish instantly vanished within the ocean.

Only then did the Giant Bone Fish angrily say: "Not thinking of defeating the Heavenly People to make a name for yourself, instead insisting on dwelling in such a small company!"

"Sigh... Bone Fish truly are getting worse with each generation!"