the older I get the more tiresome avoiding the rampant pedophilia becomes

When 30-year-old Daikichi Kawachi returns home for his grandfather's funeral he learns about the existence of Rin Kaga, his grandfather's illegitimate six-year-old daughter by an unknown mother. The girl is an embarrassment to all his relatives and is treated like an outcast.

Annoyed by their attitudes, Daikichi decides to take care of Rin himself, even though he is single and has no experience in raising a child. As Rin becomes part of his life, Daikichi experiences the hardships of being a single parent.

Usagi drop comes across as a manga I would want to read, I love interpersonal drama. Saw a few clips of the anime on tiktok, it seemed wholesome and heartwarming.

But wait

Ten years later, Rin is a high school student and the remainder of the series focuses on her trying to figure out how to deal with her feelings for Kouki, and her decision for a career. Rin discovers that she is not actually related to Daikichi by blood, and the series ends with Rin wanting to have a child with Daikichi.

Why are they like this??