: Faced with no safe way to keep her, the duo spends a final, bittersweet day with Miri—going shopping, playing games, and visiting an amusement park. Kazuki tells Miri she is just going for a "sleepover" at her mom’s to keep her happy.

: Miri’s biological mother, Misaki Unasaka , unexpectedly appears at the daycare to take Miri back. She reveals she hit rock bottom after losing her job and boyfriend, and most significantly, her throat cancer has spread, meaning she can no longer sing and may not have long to live.

: The episode concludes with the heartbreaking scene of Kazuki and Rei delivering Miri to her mother, realizing they must give up their "happy family" life to protect her. Thematic Elements & Reception