Mamahaha no Tsurego ga Motokano datta (My Step-Sister is my Ex) will be getting an anime . According to the official website , no other information about the production has been revealed.
Therefore, the light novel is written by Kyōsuke Kamishiro with illustrations by Takayaki .
Synopsis:
After numerous arguments, Mizuto Irido and Yume Ayai decided to end their relationship and move on with their lives. However, an unexpected twist of fate led their parents, both divorced, to fall in love and get married. Now living with siblings , Mizuto and Yume must deal with their old feelings, avoiding contact with each other as much as possible to preserve the peace and their parents' relationship.
Mamahaha no Tsurego has already surpassed 450,000 copies in circulation, with the novel having 6 volumes and the manga having 3 volumes.
Finally, the work was twice included in the ranking of best light novels of the year.