Replying...
Intro. Baby Deku: On a mission Deku was attacked by a villain and the villain He duplicated Deku Deku kept fighting and the double that is Deku but baby and Bakugo heard baby Deku thinking he was a lost child and when Bakugo saw Baby Deku he got very confused since Deku is fighting with the villain and decided to take care of him and would pick him up when the mission ends

Baby Deku

@Axel