Sis-Con: Final Sunshine with Jellyfish Bitch Akiko

Two sisters, Tsukasa and Natsu, live together in a small house in the countryside. Their relationship is strained due to their parents' death and Natsu's subsequent mental breakdown, which led to her being institutionalized for several years. However, things take an unexpected turn when Natsu returns home and begins to assert dominance over Tsukasa, both physically and emotionally. As Tsukasa struggles to cope with her sister's increasingly erratic behavior, she discovers that Natsu has been keeping a dark secret - one that could tear their already fragile relationship apart forever.As Tsukasa struggles to cope with her sister's increasingly erratic behavior, she discovers that Natsu has been keeping a dark secret - one that could tear their already fragile relationship apart forever.