第 15 集: Miku 試圖在糕餅店幫忙，同時暗中為 Akira 烤蛋糕。

Akira's little sister, Miku, pays a visit to the patisserie, wanting to help out at the shop but finding it harder than expected. While out shopping with Ichika, Miku explains how she wants to do something for Akira in return for the chocolates she gives her as a charm. Working with the others in secret, Miku makes Akira a poodle-shaped chocolate cake, showing her how much she wants to protect her smile as well. Just then, Julio steals Miku's kirakiral to create yet another weapon, sending Akira into a fury. As Akira is overwhelmed due to her anger, she gains power from the feelings she received from Miku's cake and turn the battle in her favor. (Source: Wikipedia)

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