Magubouya is a mug-headed boy, and one of Yakanman’s friends. His story is one of the few times that an object-based character has actually had a part of them broken. When he was invited to the school to give out mugs to the students, Baikinman showed up and tried to take all of them for himself. When they fought over them, Magubouya ended up hitting his head causing a large chip to break off. He only realized a piece was missing once it had fallen into Baikinman’s UFO and Baikinman had left, so even with everyone helping he wasn’t able to find it. His friends try to help him use replacements to fill in the hole, but it only makes him feel worse about it.
Baikinman eventually realizes he has Magubouya’s missing piece, so he uses it to force Magubouya to help him- even going so far as saying (and illustrating) that everyone will hate and mistreat him for being broken. Magubouya helps lead Anpanman into a trap, but realizes that getting his piece back wasn’t worth hurting someone who had only ever been kind and helpful to him. He pushes Baikinman to stop him, causing Baikinman to drop the piece and it to shatter into itty bitty shards.
After Baikinman gets punched up into the stratosphere, he finally is able to get fixed perfectly (despite the teeny tiny sizes of the pieces) by the glue man Zamasu Bondo and his glue gun.
