Sweet Temptation from My Wife’s Sister

Synopsis

While tutoring his sister-in-law Mimori, the protagonist is suddenly confronted with provocative questions about his marital satisfaction. Mimori, a cheerful and flirtatious girl, begins seducing him despite his attempts at resistance. Though she had genuinely harbored feelings for him before he married her older sister Ashmori, she now believes he’s unsatisfied in his marriage. Under the guise of receiving tutoring help, Mimori moves in and escalates her seduction.

The protagonist, though devoted to his serious wife, finds their intimate life unfulfilling and secretly yearns for more passion. As Mimori’s advances intensify, he faces an internal struggle between fidelity and temptation.