The upcoming anime adaptation of My Stepmom’s Daughter Is My Ex begins this July as part of the Summer 2022 anime season.
My Stepmom’s Daughter Is My Ex is about… well it’s right there in the title isn’t it? A young school-age couple which didn’t work out is forced to reconcile with one another when its revealed that their single parents are getting married. Despite being step-siblings, their former relationship makes things all the more awkward.
— 『継母の連れ子が元カノだった』公式@第８巻２月発売！ (@tsurekano) April 26, 2022
A summary of the series from MyAnimeList can be found below.
A certain boy and girl in middle school became lovers, flirted with each other, disagreed on trivial things, became more frequently irritated with each other rather than excited… and ended up breaking up on graduation. And so the two of them, Mizuto Irido and Yume Ayai, wound up meeting each other in the most unexpected fashion.
“Isn’t it obvious that I’m the elder brother?”
“Isn’t it obvious that I’m the elder sister?”
The children of the partner of their parents’ remarriage were ex-lovers?!
The former couple, mindful of their parent’s feelings, decided on a “sibling rule” where the one who becomes conscious of the other as the opposite sex loses, but… When they encounter each other in the bathroom, commute to and from school together… along with the memories of the past and living under the same roof, just how do they disregard each other?!