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The story centers on a pair of stepsiblings. When Kōta's father gets remarried, Kōta's first impression of his new stepsister Aika is that she is beautiful, but that image is shattered pretty quickly. His new stepsister is a super sassy and foul-mouthed gyaru who behaves uncontrollably while their parents are away, making Kōta's life a living hell. However, their relationship begins to change when Aika gradually warms up to Kōta's caring older-brother nature.
Last Episode Aired
2026-03-23
S1E12 — From Teary To Twinkly
Aika boldly barges in on Kouta's bath time, holding a trendy bath bomb. Meanwhile, Kouta, concerned by Aika's tears he saw in the ruins, blurts out something that spoils the mood. However, Aika's reaction was different from what Kouta had expected. Sensing something, Kouta asks Aika to tell him about herself. Then, Aika begins to recount a certain event from her past.
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Availability data provided by JustWatch via TMDB
Billed Cast
Hana Yurimoto
Aika Takamura
Momosuke
Yoshiyuki Takamura
Iroha Haruno
Misaki Takamura
Yūta Igarashi
Kōta Takamura (voice)
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