Seirei Tsukai no Blade Dance

When the Chemistry teacher secretly practices witchcraft at normal school, many things can go wrong! Fuyumi Renji realises this as Kirise Ririka somehow walks through all his magic barriers and interrupts his spellcasting! How could a normal high school girl ever be able to do this?

16-year-old Yukito Kirihara lives with his 14-year-old sister Sana, whom he treasures more than anyone else. But when an ogre shows up outside of his window looking for Sana (a shocking event in its own right), Yukito leaps to save her—and is killed. He's offered the promise of reincarnation by a mysterious woman, who gives him a character sheet in a mysterious book. But when Yukito sees Sana in there, too, he sets off to find her, and save them both—even if he only has 1 hp with which to do it! ___ [Alternative English Translation (INKR)](https://comics.inkr.com/title/2248-otherworldly-munchkin-let-s-speedrun-the-dungeon-with-only-1-hp)

At the popular Japanese-style tea house Rokuhoudou, customers can count on receiving not only excellent food and drink, but - if they wish for it - a helping hand in solving any problem that may be plaguing them. Serving in Rokuhoudou are four men who are consummate professionals in their individual fields: tea expert Sui, barista Gure, pâtissier Tsubaki and chef Tokitaka.

Kazehaya Kamito has been summoned to the girl's school, Areishia Spirit Academy, which teaches noble young ladies how to make contracts with powerful spirits. On his way, he has the misfortune of catching sight of one of these lady spiritualists bathing. She is Clair Rouge, and she is contracted to a spirit named Scarlet, though she has her sights set on a more powerful spirit. Kamito convinces her to lead him to the school, but she stops on the way to make a contract with this powerful spirit…