Mother Parasite  

マザーパラサイト, Mother Parasit

Ryouta Miki is a young man who enjoys living life with his single mom. However, their relationship is unusual because she's always worried about causing any problems. On the other hand, Kaoru Kasai, one of Ryota's classmates, feels frustrated by her mother's overprotectiveness and believes it's responsible for him being bullied. Despite this, they finally meet after Ryota saves Kaoru from bullying. This is a psychological thriller that follows the journey of a boy who becomes obsessed with finding his ultimate mother.

Mother Parasite is published digitally in English by Coamix through Manga Hot.