Mon Mon Mon Monsters (報告老師！怪怪怪怪物！) 6 years old

Shu-wei is an unpopular student who is a constant target for the school bullies, but he ends up joining forces with them when they encounter two demonic sisters who feast on human flesh in the middle of the night. The gang manage to capture one, but the other demon is angry and starts killing anyone wearing a school uniform...