Crime doesn't pay and the punishment doesn't always fit the crime - a lesson Natsuo experiences firsthand after 'borrowing' a book from the library.

Natsuo's perception of Hina changes when she reveals how she first met Shuu. Later, Rui comes to Natsuo with a surprising request - one he isn't sure he should fulfill.

Natsuo takes a tumble down a flight of stairs, but a broken leg is the least of his worries when he's caught in a lie by Rui.

Rui makes a decision after her conversation with Natsuo. Later, Natsuo's class takes a field trip to Okinawa, where feelings are laid bare beneath the light of fireworks.

When the unthinkable happens, Hina expresses her love for Natsuo the only way she can: by giving him a chance to move on.