BT

Class 3-A was having a perfectly normal lesson—until the floor disappeared beneath them. After an extremely long fall, the students find themselves in a strange underground world populated by talking monsters, magic, human souls, and a skeleton named Sans who refuses to take anything seriously. With no way home, Aizawa and his students must navigate the Underground, meet its bizarre inhabitants, and somehow avoid causing an international incident between humans, monsters, and one very angry skeleton. Unfortunately, Bakugo has already declared war on Sans. And Sans has already started calling him an angry chihuahua.