Onee-chan no Midori-kun summary: You are reading Onee-chan no Midori-kun manga, one of the most popular manga covering in Shoujo, Romance, School life genres, written by Meguro Amu at MangaBuddy, a top manga site to offering for free. Onee-chan no Midori-kun has 25 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add Onee-chan no Midori-kun to your bookmark. The manga centers on Sui, a girl in her third year of junior high. She doesn't really get along with her older sister's boyfriend, Midori-kun, since he always treats her like a kid and makes fun of her. But Midori-kun is suddenly asked to be Sui's home tutor.