Joker: One Operation Joker Vol. 1

Rating: Teen(13+)
Story and Art by: Satoshi Miyagawa
Recommended for fans of: Crime, Action, and Comedy
Read this if you're in the mood for: a twist on a classic where Batman is accidentally transformed into a baby, and it's up to none other than The Joker to take care of and raise the baby Dark Knight, leading to unexpected challenges and comedic situations.
 
During a fight with The Joker, Batman falls into a chemical vat that somehow turns him into a baby. Who is going to take care and help raise baby Batman? The Joker, that’s who.

Written by Satoshi Miyagawa (Uchuu Senkan Tiramisù) and illustrated by Keisuke Gotou, this manga finds Batman transformed into a baby following an accidental fall into the same vat of chemicals that turned the Joker into his evil self.

Immediately after accident, the Joker finds himself lost without his arch-nemesis and takes it upon himself to raise baby Bruce Wayne. However, the Joker finds fatherhood to be a lot more difficult than he initially thought.