Bunny Drop (Japanese: うさぎドロップ, Hepburn: Usagi Doroppu) is a Japanese josei manga series[3] by Yumi Unita. The plot follows thirty-year-old Daikichi as he becomes the guardian of Rin, the illegitimate six-year-old daughter of his grandfather. Bunny Drop was serialized in Shodensha’s monthly magazine Feel Young from October 2005 to April 2011. Its chapters were collected into nine wide-ban volumes by Shodensha. The series has been licensed for English language release by Yen Press.

Plot
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. He is befriended by the single mother of Kouki Nitani, a young boy that Rin meets in nursery school, who gives him advice on raising Rin. After a year has passed, Daikichi acknowledges his sacrifices for Rin have been worth it. The first half of the series focuses on Daikichi’s perspective and struggles raising Rin.

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.

The anime and live-action adaptations do not depict this revelation, and instead end before the time skip.

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