Under the repeated assurances of the old lady, Yusuke left the Wagashi shop.

How much power the old lady has, Yusuke doesn't know, in fact, the matter of herbs and katana is more reliable for the Hanazawa family, but the Hanazawa family is a bit huge for Yusuke at this time, and Yusuke would rather cooperate with the old lady than touch it.

Back at home, Yusuke took out a backpack from his closet, which was given to her by the Kurai family, and contained ancient books that Yusuke had asked them to send.

Yusuke plans to exchange them for the one in Sakura's hand in Tsukimi, which provides him with a lot of gray gas and comes with an unknown book of a great yin spirit.

That book is a girl's beloved thing, and there is something wrong with exchanging something else for something beloved in someone else's hands, but there is no way.

There must be something wrong with that book, although there is no danger in the book of the Yin Spirit, but it is still very necessary to recycle, and when it drags on for so long, it is already my own slackness.

Taking out his phone, Yusuke opened the package, and he was going to take a picture first and send a message to Sakura Tsukimi.

As he lifted the package, his movements stopped abruptly.

There are a few ancient books in the package, and there is nothing greasy, what makes Yusuke freeze is not the ancient books inside, but the things that are wrapped around the ancient books.

It was gray yin.

Throwing the package aside, Yusuke reached for the ancient book, the rough texture appeared on his fingertips, but he didn't care, he stared at the gray yin qi in the book, watching them slowly enter his palm.

This is the gray yin qi, although it is a little rare, but it is indeed the gray yin qi that I have been unable to find for a long time!

There are a total of ten ancient books sent by Kurai Yangsheng, and there are about five traces of yin qi absorbed by Yusuke from them, and these yin qi can raise the inheritance of the five non-entry doors to the highest proficiency, and the inheritance of the first order of the two points and five doors can be raised to the highest proficiency.

Of course, this is only a conservative estimate, unlike the black yin qi, the consumption is based on the level of inheritance, and the consumption of gray yin qi depends on the complexity of the inheritance.

Of course, it is also a general rule that the higher the level of inheritance, the more complex it is.

Entering the Heritage Library, Yusuke came to the bookshelf at the edge, and even the gray gas that was not used last time, his gray gas volume was about thirty threads.

Using two traces of ash, Yusuke raised the Wind Spell to the maximum proficiency.

In these days of use, Yusuke has found the wind spell to be very useful, not only as an attack method, but also to increase his speed and even perform a short gliding session.

Just a rough wind spell can be used to glide, but what happens when you reach the highest level of proficiency?

Glancing at the dark shadow spirit cowering in the corner, Yusuke thought for a moment and walked towards it.

"What do you want to do, don't come here!" The black shadow ran towards the other end of the library, but its speed was no match for Yusuke, and it was caught in a few moments.

"I've told you everything I know, and I'm sure I'll be spared!" The dark shadow struggled.

"I didn't say I'd let you go." Yusuke took it back to the bookshelf.

The black shadow was speechless for a while, the boy really didn't say that he wanted to let himself go, but just threatened himself with killing himself without saying anything.

"Don't throw me on those things!" The black shadow looked at the bookshelf in front of him in horror, it had been crisscrossing the Netherworld for decades, and it had never seen anything that could absorb the body of the Yin Spirit, the Yin Spirit should only be devoured by other Yin Spirits, and there was no other way to die.

"Then I'll talk about something I'm interested in." Yusuke didn't want to unlock any inheritance, he was just scaring the shadows.

"No, no, I've told you everything I know, what else do you want!" The dark shadow's tone was horrified and angry.

Staring at the black shadow for a while, he shook it around in front of the bookshelf again, and seeing that it didn't mean to change his words, Yusuke let it go.

It's not that the black shadow doesn't know what information it is, it's not that the yin spirits are not human beings after all, they are like beasts, they only guard their own territory, rarely communicate with other yin spirits, and there is no Internet in the human world, so they are all guys who don't know anything.

The Black Shadow itself is precious enough, and Yusuke is satisfied.

Out of the Heritage Library, Yusuke lay on his bed and chanted the Wind Spell, when a gust of wind appeared, and the wind swept under Yusuke's body and slowly lifted him up.

This is really lifting Yusuke, not Yusuke relying on the wind to glide, and the wind spell with the highest proficiency level can already fly.

Flying around the room, Yusuke discovers that this kind of flight has limitations, but this limitation is also something that cannot be helped.

When flying with the Wind Spell, it is extremely difficult to control the direction, especially the steering.

Being difficult to control is a disadvantage of spells, not just wind spells.

For a moment, Yusuke felt the urge to unlock another "Wind Law Basics", but it was only an impulse. "Wind Law Basics" can make up for the inflexibility of spells, but it is too extravagant to use a trace of black gas for this trivial matter.

Dispersing the wind spell under him, Yusuke felt his dantian, and only half of the spiritual power was left in the dantian.

It is a wind spell to fly, and the loss of spiritual power is also very large.

After taking a Pei Yuan Dan, Yusuke recovered his spiritual power, picked up his mobile phone, and began to get down to business.

He took a picture of the ancient books and knocked on Sakura's LINE account in Tsukimi.

[What for?] The girl's tone was a little unkind.

Yusuke is also used to this tone, after sending the girl's father home last time, the girl's attitude was much more relaxed, but because of his teasing these days, it is a little worse.

This kind of bad is just an attitude, in fact, the intimacy between the two has increased a lot, at least Yusuke can touch the girl's head as much as he likes while she is focused on the book.

Yusuke edited a few sentences, but he was not satisfied, and finally said straight to the point: [Can you exchange the ancient book last time for me? 】

Sent a picture of an ancient book sent by the Kurai family, and Yusuke sent it again: [Exchange it for another ancient book]

Yusuke just clicked on the pictures of the remaining nine ancient books and wanted to send them, but the girl's reply arrived first.

[Well, if you want it, I'll give it to you]

Canceled the sending of pictures, Yusuke asked, "Is this good, do you like it very much?" 】

[It's just a book, and after my dad sent it for identification, the appraisal result given was 90% likely to be fake...... if you like it, just thank you for taking care of it recently] The girl thought about it, deleted the last sentence again, and clicked send.

[Although that book may not be an ancient book, it also has some value, I'll exchange it with you] I didn't expect things to go so smoothly, and Yusuke breathed a sigh of relief.

[You are really ancient books, those books are not collected if you want to, I don't want to]

[It's okay, I have a lot] Yusuke sent photos of the remaining four books again.

[Anyway, it's for you.,You come to my house to get it] Edit the information.,Tsukimi Sakura's finger hung on the send button.,I couldn't click it for a long time.。

Her gaze lingered on the ten photographs, tangled.

What if you want to?

Holding her little head, the girl rolled around the bed twice, and finally made up her mind, picked up her phone, and she sent: [Since you have so many copies, just lend me one to see, I will keep it well]

[Then see you tomorrow at eight o'clock in the morning, at the school gate]

[You come to my house to get it] Sakura in Tsukimi doesn't want to go out.

[Let's just come out and have fun]

[I refuse]

Yusuke sent photos of the remaining five ancient books.

After five seconds, the girl sent a reply: [It's at the school gate, okay]

Turning off the line, Yusuke's face was smiling, and he thought about what he was going to do tomorrow.

Just as he put down his phone, he received an email from his mailbox.

Clicking on the email, Yusuke discovers that the sender is the head of the plane.

[Brother Otono, save Brother Ogura! ] 】