My name is Yotsuba Mahiro, a time traveler.

Sent to the Demonic World by an alternate-world teleportation ambassador, I became a Adjustment-Type magician of the Yotsuba clan.

Besides being born with eyes capable of replicating all forms of magic and physical techniques, perhaps my greatest supporter is my cheap mother, Yotsuba Maya.

After fifteen years in the gloomy Fourth Research Institute, my cheap mother suddenly gave him a crucial task.

"Although you're a Adjustment-Type magician of the Fourth Research Institute, you're also my child."

"So, it's also your duty to produce a worthy heir to the Yotsuba family."

It's just about carrying on the family line, a simple matter. Is the bloodline of the Ten Master Clans and the Hundred Houses enough? What if

I add your sister Miya? What if

I add the lolita from the Black Bullet world?

What if I add the assassination group from the Zelda: The Sisterhood?

What if I add a singing diva from Guilty Crown?

...

After traveling through ten worlds, he asked Maya again.

"Is that enough now? If not, I can add more!"

Mahouka (Temporary Absence) - Black Bullet - Return to Mahouka (In Progress) -

Volume 1: The Beginning of Mahouka

Volume 2: Black Bullet

Volume 3: Return to Mahouka

Su Xiu transmigrated to the world of American comics, a world that blends Marvel and DC, where all sorts of villains emerge!

Terror gripped the land, but he remained completely calm!

Because he awakened the 'All-Heavens Invasion System', which allows him to randomly select natives of this world to conquer other worlds. The rewards obtained by the superheroes are amplified a hundredfold by Su Xiu!

Iron Man is infected with the T-virus and embarks on a glorious evolution of flesh and blood.

Thor, wielding twelve runes, transforms into the eternal Rune King mode.

Captain America waves the flag and sets sail, sparking a human rights revolution in the world of exploration, turning the sea red with freedom.

Thanos: Is this how peace can be achieved?

The Primal Beyonders: Warhammer Four Peddlers?

OAA: I see a higher power!

—

Soviet revisionists: You may make a small profit, but I will never lose!

Huh?

How did Spider-Man become Gwen Stacy? Scarlet Witch, what are you doing here? Flying Girl! ...