Boyfriend, Sometimes Girlfriend

Hodaka Akizuki, a seventeen-year-old high school student, has finally found a girlfriend. And Chihaya Shishizaki is truly the most beautiful girl at school, too. Just the thought of spending time with her practically has him pinching his cheeks. After all, she actually likes him back! The closer they get, the more his heart flutters. There's just one slight little problem: Chihaya has a secret―and it isn't just the secret to stealing his heart.
With just one kiss, Hodaka is no longer Chihaya's boyfriend, but her brand new… girlfriend?!