: Reviewers from sites like But Why Tho? and The Review Geek noted the painful contrast between Miri’s innocent joy and the silent agony of her dads throughout their final day together.

Episode 10 of Buddy Daddies , titled is widely regarded as the series' most emotional and somber chapter. It shifts from the usual "found family" fluff to a high-stakes drama where Kazuki and Rei face the potential loss of Miri. Plot Summary

: 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.