Shoujo Sect: Innocent Lovers(2008)

Shoujo Sect: Innocent Lovers is an anime series following childhood friends Handa Shinobu and Naitou Momoko as they navigate high school life. Shinobu has harbored romantic feelings for Momoko since they first met, but Momoko has no memory of their shared past or the promise they once made. While Momoko moves forward unaware, Shinobu clings to hope that she'll eventually remember and reciprocate those feelings. The series explores themes of unrequited love, nostalgia, and the tension between holding onto the past and accepting the present. As their paths diverge in high school, Shinobu must grapple with whether their childhood bond can be rekindled or if it's time to let go.