When teenager Izumi finds a lost wallet while skipping school, her friends Kaoru and Hasumi persuade her to give it back to the owner, heartthrob Sato. But Sato has a secret. Reckless abandon and innocence give way to complex feelings, and secrets begin to unravel. In the end, the sky looks a heavenly pink for Izumi and Sato. But this comes at a price.