Haru, a young girl plunged into profound grief and isolation after her parents perish in an accident, receives an unexpected lifeline from her grandfather: Q01, a companion robot crafted in her likeness. Initially resistant to its presence, she slowly forges a bond with the android as it supports her through emotional turmoil and daily challenges. Music becomes pivotal to her healing, particularly through playing the flute—a cherished gift from her parents that transforms into a conduit for sorrow, remembrance, and acceptance. As Haru interacts with Q01 and pours her heart into melodies, she processes her loss, transitioning from crushing sadness toward solace, joy, and renewed human connection.