Toaru Majutsu no Index: New Testament - Volume 16, Chapter 2: Attacking a Base with a High-Class Girl - Tower_of_the_Crystal.

“I hope you don’t fall in love with me, because I won’t be taking responsibility,” warned the young man. “Don’t worry, I won’t fall in love with a body double,” the employer dully replied. Yet, both of them forgot what they had said.

A chance to change, to challenge destiny, making dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish!

- Description from Novelupdates

Luo Xingchen traveled to the world of Fairy Tail.

Comes with a plug-in magic sublimator.

Since then, Luo Xingchen has embarked on a different path.

Not to mention, you can borrow the magic crystal emblem transformed from the magic power of the wizard to strengthen yourself.

Mainly, you can also use multiple badges to fuse into a new form?

Please, I’m not the debt king Uub.

But after trying it for real, he realized that this thing is really fragrant.

Of course, occasionally there will be some troubles.

That is, what if the other party does not borrow it?

Easy!

As a mage genius, it’s not too much to awaken a magic, right?

Relying on the awakened devouring magic that can forcibly extract the magic power of the wizard.

Combining two by two…

You have to borrow this power if you borrow it, or you have to borrow it if you don’t borrow it!

When a certain day.

Luo Xingchen held the black dragon’s dark magic crystal badge in his hand, and added the shining star’s light magic crystal badge,

The moment they come together,

The ultimate form that surpassed the gods was born…

- Description from novelbuddy

To rise from defeat; to revive amidst the dissipation.