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