Sakuma Sasaki's Manga List

Shinichi Sotoyama might just be the world's most average high schooler. That is, until he finds himself summoned by the Blue Demon King to a fantasy world-just like his favorite RPG games! Except this Demon King is pathetically begging at his feet, lamenting the arrival of some "heroes"...who apparently, have infinite lives and respawn over and over again?!
Unlike his hysterical summoner, Shinichi coolly takes on the challenge of fending off these pesky heroes, literally shaking hands with the devil. But the demon clan is about to find out that his twisted mind is darker than the worst of them!

DEATH COMFORTS US ALL

When a black-robed skeleton shows up at Mira's door in the dead of night, the last thing she expects is for him to cure her fatal infection! Her nighttime visitor is Undead King Terios, who soon finds himself feeding and teaching the peasant children he saved from disease during a chance encounter. With guidance from this terrifying yet kindhearted skeleton, Mira blossoms into an apprentice magic user. But will her idyllic world shatter when the nobility sends a squad of knights to eradicate the "skeletal menace"? This is the legend of an Undead King who aims to conquer the world without taking a single human life!