I'll forget everything one day, even the precious time you gave me
Part of the Scene series. It's from the man's point of view.
He thinks back on his girlfriend's constant cheery mood and talkativity and her habit to call him "stupid". In the end when he sees her crying and is unable to understand why, he calls himself stupid. He hopes that he'll meet her some day again, yet it hurts so much that he hopes he can forget her as well.
It was featured in the album Kimi ga Utau Boku no Uta.