Osamake: Romcom Where the Childhood Friend Won't Lose - S01

Sueharu Maru has been best friends with Kuroha Shida since they were kids. Kuroha, one of the most popular girls at Hozumino High, is sweet, bubbly, and always looking out for others-like an ideal older sister. Guys are constantly fawning over her, so when she suddenly confesses her feelings to Sueharu, he turns her down without hesitation. To him, she’s just a friend, nothing more. His heart is set on someone else: Shirokusa Kachi, the school’s idol and a famous author. After a chance encounter, Sueharu thinks he might have a shot with Kachi-until he learns she already has a boyfriend. Crushed and heartbroken, he wallows in regret. That’s when Kuroha steps in with an unexpected offer: "let’s get revenge."