[Crossover] A World Without You in This Book

Shen Mingqianli, a guardian of the world's order, opened a coffee shop.

The staff included a handsome, gentle ninja with smile lines, a part-time magical girl who could transform into a muscular hunk, the master of the Book of Friends, who came by on weekends with a fat cat to help out, and the great Onmyoji Abe no Seimei, who served as both the shop's welcoming face and its security.

Together, Qianli and her companions protected the peace of the world.

They dealt with every dangerous individual who threatened to destroy the world. Then, on the very day she was planning to retire and enjoy her golden years, an asshole from a parallel Earth activated some enormous power and forcibly fused two timelines, patching up the worldline she had so carefully tended.

And so the world was thrown into chaos once again, making the guardian's already receding hairline even worse.

Qianli: "...Damn you, Kiryu Sento! Damn you!!"

After saving everyone, the self-proclaimed genius physicist Kiryu Sento set off for a new world, only to discover he'd ended up in the wrong place.

This world had no Kamen Riders, only fire-breathing ninjas, girls who could turn into muscular hunks, monsters who could talk... and a coffee shop owner who claimed to be forever eighteen. On his very first day there, she forced him to sign an open-ended contract of servitude.

Kiryu Sento: "...This is the worst."

*Also known as "So You're the One Who Used My Worldline as a Bandage?" and "Would a Youthful Cafe Owner Dream of Rabbit Scientists?"

*The basic plot has nothing to do with the original. You can enjoy this even if you haven't watched the anime.

*Everyone has a duty to show love to the Arctic Circle.

Theme: The goal ahead is the stars and the sea.