Demon King, Your Big Brother Wants You Home for Dinner

魔王大人，你哥喊你回家吃饭 · Mówáng Dàren, Nǐ Gē Hǎn Nǐ Huíjiā Chīfàn · Mowang Daren, Ni Ge Han Ni Huijia Chifan

Just imagine~ you’d just become the new demon king, drinking a little wine and singing before unceremoniously being thrown into the human realm. Not only did you lose your mana, you also became a little baby who has to live with a strange family.