is a Japanese adult animated production (OVA) released in 2017. It was produced by T-Rex Studios and directed by Ken Raika, with character designs credited to Joy Ride.
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The series typically follows a protagonist and his younger sister, Sayaka or Mina, involving suggestive or explicit scenarios.
: It falls under the category of adult fiction, specifically focusing on themes common in "eroge" or adult-oriented media adaptations.