Angel's 3Piece! (2017)

Nukui Hibiki, a reclusive young man haunted by a past trauma, channels his energy into creating and sharing music through vocalization software. His solitary life takes an unexpected turn when he receives an email from a trio of fifth-grade girls, who, like sisters, have formed a close bond over the years. They seek his assistance to express gratitude to those who have supported them throughout their lives. Their ambitious plan? To stage a memorable concert at a venue rich with shared experiences, blending their personal growth with a heartfelt tribute.