Stai Guardando Mamahahanotsuregogamotokanodatta... Apr 2026

: It was produced by Project No.9 , a studio known for other romantic comedies like The Angel Next Door Spoils Me Rotten [3].

The story follows and Yume Irido , a pair of former middle school sweethearts who broke up upon graduation [1, 3]. Their lives take a sudden, awkward turn when their parents remarry, forcing them to live under the same roof as step-siblings [1, 2]. Key Features of the Series Stai guardando MamahahaNoTsuregoGaMotokanoDatta...

: Unlike many tropes in the genre, the show focuses heavily on their past relationship and the lingering resentment and affection that comes with a "messy" breakup [1, 3]. : It was produced by Project No

: The narrative often explores both Mizuto's and Yume's internal monologues, showing how they each struggle with their changing feelings [2, 3]. Key Features of the Series : Unlike many

The anime (translated as My Stepmom's Daughter Is My Ex ) is a romantic comedy series based on the light novels by Kyōsuke Kamishiro [1, 2].

: To manage their tension, the two establish a rule: the first one to act "un-sibling-like" or show romantic interest loses and must obey the other [1, 2].