Kioku Capsule: Oniichan to, Mou Ichido
キオクカプセル お兄ちゃんと、もういちど
A high school girl named Mayu awakens in the hospital after an accident, having lost two years of her memories. Her mother and older brother are by her side. The brother mentions that her father remarried two years ago and promises to stay close to her. Mayu's memories end with the formation of a new family. She is determined to recover her lost time but is uncertain about what she might uncover. When she is told, "Mayu, you and I had a romantic relationship," she is shocked by her brother's revelation. The story explores the emotional and sensitive nature of their relationship as Mayu grapples with this unexpected and confusing situation.