A Journey Through Anime Worlds in My Sister's Name

The unlucky young man from Earth transmigrates to a crossover anime universe and becomes Umaru's older brother, Taihei Doma.

He obtains the much-anticipated Harem Crystal System.

In the name of being a siscon, he will conquer the world.

Want to get stronger? Go pick up girls!

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.