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Sta☆Sis
スト☆シス
Shirai is an ordinary high school student trying to live a normal life, but his sister Miaki has been obsessively stalking him since preschool. She monitors his every move, records his actions, and interferes with every aspect of his daily routine.
When the attractive Yuuko Satonaka starts getting close to Shirai, Miaki becomes furious and will do anything to keep them apart. As Miaki escalates her efforts to separate her brother from any potential romantic interest, Shirai must navigate his sister's relentless possessiveness.