第 3 集: Kei 招待朋友來訪，隱藏物品與學校比賽浮現。
2024年4月24日 播出
Kei invites Todo and Chihaya to his house to deepen their friendship. There, she is shown a catcher's mitt hidden under the bed by Harihi. While each of them has to face the "things they can't throw away,'' a practice match for the prestigious Teitoku High School is decided! (Source: Boukyaku Battery Website)