Kire Papa (2003)

Blurb:
Who’s Your Daddy?! Chisato is a divorced dad who thinks that every guy who tries to become friends with his irresistibly cute son, Riju, is just looking to take advantage of him. In his efforts to protect his adorably innocent son, Chisato often resorts to dirty tricks, such as feeding Riju’s classmates snacks laced with laxatives. But, eventually, thre is one guy remaining who simply refuses to give in and give up: Riju’s best friend, Shuunsuke. After four years of trials and tribulations, he still visits. Chisato starts to wonder whether he might actually be the "real thing," and not just a best friend.

Source: www.anisearch.com/manga/759

Der Schriftsteller Chisato Takatsukasa lebt alleine mit seinem Sohn Riju nach der Trennung von seiner Frau. Als fürsorglicher Vater hat Chisato bisher alle Freunde seines Sohnes verschreckt, da er befürchtete, sie würden versuchen, Riju zu vergewaltigen. Bis jetzt hat er es auch stets geschafft sie zu vertreiben, doch Rijus bester Freund, Sakai Shunsuke, ist ein sehr schwieriger Fall …

Quelle: www.anisearch.de/manga/759