Tsukasa, Nadeshiko, and Mikage have been inseparable since starting junior high, but Tsukasa harbors a secret she has kept from her best friends: she has a strong crush on Nadeshiko. Unwilling to jeopardize their friendship, she intended to keep this hidden forever. However, upon discovering that Nadeshiko has a crush on Mikage, Tsukasa's desire to support her friends clashes with her own feelings. First love unfolds in unexpected ways for these three young women and their circle of friends.