ぼくらのレットイットビー (Bokura no Let-it-Be)

Background
HarryP's most notable song. It is a song about two childhood friends, one of whom passed away before they could get married, and how the singer will never forget. The plot is inspired by the anime Anohana.

In the music video, the girl introduces the idea of reincarnation to the boy, saying, "If I get reincarnated, I promise to play with you again, someday." The two childhood friends are often seen with the traditional red string of love/destiny tied to both of their pinkies. After the girl passes away, the last scene is of the boy, the red string still around his finger. However, this time the other end is connected to a beautiful blue flower: the reincarnation of the girl.

This song is included on the compilation album V Love 25～cantabile～.

This song has entered the Hall of Fame.