As Ringo contemplates making a special curry for Tabuki, Shōma and Kamba, having been reminded about Himari's fate if they don't cooperate, break into Ringo's house to search for the Penguindrum. After just managing to hide from her when she comes back home to prepare her curry, the brothers follow Ringo to Tabuki's house, where she finds another woman living with him. Ringo swaps the curry she was preparing with her own and runs off, where she runs into Himari who invites her to her house, much to the brothers' surprise. After eating together, Ringo returns home and confirms the events laid out in her diary.
In casa Oginome è tradizione, il 20 di ogni mese, mangiare il curry in famiglia. Visto che la madre è impegnata Ringo decide di cucinare il piatto per mangiarlo insieme a Tabuki. Mentre lei è a scuola Shōma e Kanba entrano nel suo appartamento per cercare il Pingdrum.
「ピングドラム」が苹果の私物なら、彼女の部屋にある可能性が一番高いに違いない。
そう推理した冠葉と晶馬は学校を休み、荻野目家に侵入するのだが、なかなか「ピングドラム」が見つからない。
そこへ苹果本人が帰宅してくる。
