今日から(マ)王! (Series) favorite_border

Volume 1: Shibuya Yuuri is a completely ordinary high school student with a strong sense of justice and a passion for baseball. Then, for reasons that defy all physical laws, he gets sucked through a flushing toilet into another world — where, before he knows what's happening, he's been appointed king of the demon race: the Demon King himself!? Now available as a special digital edition featuring illustrations by Matsumoto Temari!!