Kiss x Sis

Synopsis

In "Kiss x Sis," Keita Suminoe's life takes a major turn when his father remarries, introducing a new stepmother and her twin daughters, Ako and Riko, into his household. Despite their contrasting personalities—Ako being a responsible former student council president and Riko an athletic, somewhat aloof ex-disciplinary committee head—the twins share a deep, long-standing bond with Keita that began in kindergarten. As they grow older, their connection becomes more intimate and passionate. As Keita enters his final year of middle school, he receives a sports scholarship to a different high school from his sisters. However, upon realizing the potential separation, Ako and Riko plead with Keita to reconsider, and he ultimately agrees to stay at their school. With all three now enrolled together, Keita must balance his academic responsibilities while navigating the persistent romantic advances from both Ako and Riko, who are determined to make him their future husband. Although their parents support this plan, Keita finds it increasingly difficult to maintain a strictly brotherly relationship with them. Amidst the competition for his affections, he struggles to resist the continuous allure presented by his two attractive sisters.

Background

The episodes are numbered 00, 01, 02, 03, etc.