"Well, I''d like to thank your highness Wang Kai for his kindness. Of course I''d like to join your Highness''s Pro guard! Sister yue''er, what about you?"

Listening to Wang Kai''s inquiry, Shui binger''s face couldn''t help showing a trace of happiness, and his mouth quickly agreed, and then looked at Shui Yueer next to him.

"Of course, I am also willing to join the pro guard of his highness Wang Kai, and I am also very willing to develop a relationship beyond friendship with his highness Wang Kai!"

Compared with shuibing''er, shuiyue''er is younger, but her mind is obviously more open and active. When she heard shuibing''er''s question, shuiyue''er also looked at Wang Kai with admiration and answered softly.

"Very well, miss bing''er, yue''er, I believe this will be the most correct choice you have made in your life. I will not treat you badly, and you will not regret your choice in the future! By the way, when can you report to wusoul holy city?"

Looking at the actions of shuibing''er and shuiyue''er, Wang Kai nodded with satisfaction, and then continued to ask.

"Your Highness Wang Kai, in fact, we are all old enough to graduate, and we have stayed in Tianshui university mainly to participate in the soul master competition on behalf of the University. Now, since your highness Wang Kai is willing to let us enter your pro guard, when the competition is over, we will apply to the University for graduation, and then come to wusoul holy city to find you."

Hearing Wang Kai''s question, Shui binger answered with a smile.

"Well, I''m looking forward to your bringing! Here''s the token. When you graduate, you can bring it to the holy city of Wulin and come to Qingxuan hall to find me! Of course, if you have any trouble during this time, you can also take the token to the nearby Wulin sub hall or Wulin sub hall to seek the help of our Wulin hall soul master."

While taking out a gold rimmed token from the space ring and handing it to the binger sisters, Wang Kai said with a smile.

"Thank you, son, but I don''t respect you!"

Taking the token from Wang Kai, Shui binger thanked again.

"Your Highness Wang Kai, is that your space soul guide just now?"

At this time, shuiyue''er next to shuibing''er also looked at the token that appeared in Wang Kai''s hand out of thin air with a curious color, and asked with flashing eyes.

"Yes, moon, you are so clever!"

Looking at shuiyue''er, Wang Kai smiled faintly and then continued to explain: "you''re right. This is a space soul guide! Moreover, if you like, when you and your sister advance to the soul saint, I can reward you with a ten cubic meter space soul guide respectively!"

"Really?"

Hearing Wang Kai''s promise, Shui Yueer''s tone suddenly became excited and stared at Wang Kai''s expected inquiry.

"Of course! Can''t you trust my credibility?"

Wang Kai promised confidently.

In Douluo continent, although the soul guide technology still exists, the building technology of advanced soul guides such as space soul guides has been lost. Now the remaining soul guides are basically treasures inherited from ancient times or excavated from relics, not to mention soul saints. Even many strong people with the title Douluo do not necessarily have a space soul guide. No wonder shuiyueer is so excited.

However, for Wang Kai, the price of a space soul guide with a space of 10 cubic meters is only 100000 points, that is, 10 point source points. Now Wang Kai''s source points have more than 1000 points. It takes 20 points to gain the favor of shuibinger sisters. What a cost-effective business!

"Where, how can I not believe your highness Wang Kai? Just, the space soul guide is too rare, and I''m a little too excited..."

Listening to Wang Kai''s rhetorical question, Shui Yueer quickly apologized.

"For me, the space soul guide is not a rare thing! In fact, even the soul bone, as long as you work hard, I can also give it to you!"

Looking at Shui Yueer''s anxious expression, Wang Kai smiled faintly again, and then threw out a heavy message again!

"What, your highness Wang Kai, did I hear you right? What you just said... Is it a soul bone?"

At this time, even the water ice on one side could not keep calm and asked eagerly.

If it is a space soul guide, it is only a dispensable auxiliary treasure for the soul master. Although it has a certain attraction to the more mature shuibing''er, it will not make her so rude.

However, soul bone is different. For any soul master, soul bone is the most precious and useful treasure!

Even the most common Millennium soul bone can actually improve the soul purity, total soul strength, physical quality and promotion potential of soul masters. It is also the treasure pursued by every soul master. How can Shuibing not be excited when he hears that he has the opportunity to obtain soul bones?

You know, unless you are in good luck or as a core member of the great power, many of the two strong souls do not necessarily get a soul bone. Just like in Tianshui University, only the strong soul bone who is the president has a soul bone for thousands of years!

"Yes, you heard me right. What I just said is soul bone!"

Looking at the shocked two daughters of shuibing''er and shuiyue''er, Wang Kai smiled and nodded again and repeated his words.

For Wang Kai, after killing Dugu Bo, he has found three soul bones from Dugu Bo''s body, and the exchange price of a millennium soul bone is only tens of thousands of points in the system mall, that is, several source points!

Therefore, the soul bone is a very precious treasure for the soul master on Douluo mainland, and for Wang Kai, the soul bone is only a commodity that can be exchanged at will, although it needs to spend some points.

"However, unlike the space soul guide, the value of soul bones is more precious! Therefore, even if you choose to join my pro guard, I will not directly give you soul bones, but need you to make some contributions!"

"However, the requirements for these contributions are for outsiders. If they are for my family, it is naturally different! If you are willing to marry me and become a member of my big family, I will certainly prepare suitable soul bones for you in the future!"

"Of course, don''t force yourself. If you don''t want to join my big family, it doesn''t matter. We can maintain a close relationship of friends. When you make enough contributions, I won''t spare the reward. What do you think?"

Although the soul bone is very common to Wang Kai, it is very precious to these soul masters. Wang Kai will not simply give the soul bone to shuibing''er sisters and get the heart of shuibing''er sisters by relying on the soul bone. This is the best use!