Sasaki-kun ga Judan Tometa

Love is Blind

Shikaku

Ningyo Rhapsody

"When I woke up I had become a girl" Disease

Yogen no Nayuta

Imouto no Ane

Killer mermaids, gender swapping, and a devilish little sister with the power to end the world—four more unforgettable short stories that reveal the starting point of Tatsuki Fujimoto, the twisted mastermind behind Chainsaw Man. 
(Source: Viz Media) 
 
1. Ningyo Rhapsody (2014) 
2. Me wo Sametara Onnanoko ni Natteita Yamai (2017) 
3. Yogen no Nayuta (2015) 
4. Imouto no Ane (2018)