Mamahaha no Tsurego ga Motokano datta  Play Trailer

My Stepmom's Daughter Is My Ex, My Stepsister is My Ex-Girlfriend, Tsurekano, 継母の連れ子が元カノだった, Motokano, เอาแล้วไง ยัยแฟนเก่าดันเป็นลูกสาวแม่ใหม่, Step-Exes

Mizuto Irido and Yume Ayai were two individuals who shared a love for literature but had different personalities. Despite this, they seemed like a perfect match at first. However, as time went on, their differences grew, leading to them separating after middle school graduation. To their surprise, fate brought them back together as step-siblings. This led to a rivalry between the former couple, with both unwilling to acknowledge each other's older sibling status. In an attempt to resolve this issue, they agreed on a rule: whoever crossed the boundaries of siblinghood norms would lose, and the winner would be called the older sibling and get to make a request. However, living under the same roof brought back memories that may have influenced their actions and possibly rekindled feelings that were not fully extinguished in the past.

Mamahaha no Tsurego ga Motokano datta was released on Blu-ray in three volumes from October 26, 2022 to December 21, 2022.