Ochikobore Yuusha to Rikka no Majo  

The Fallen Hero and the Rikka Witches, 落ちこぼれ勇者と六花の魔女

Shuu, a struggling student at the Hero Academy with weak swordsmanship and magic skills, receives advice from the headmaster to leave the school. Suddenly, two beautiful witches appear before him, revealing that he is the chosen one who has inherited the soul of the Demon King. With this newfound power, Shuu quickly learns magic and passes his final exam, saving himself from expulsion. Inspired by this experience, Shuu decides to become a hero as a prerequisite to becoming the Demon King that the witches desire. Thus begins the journey of the peerless boy Demon King.