Ani ni Aisaresugite Komattemasu (2017)

My Brother Loves Me too Much was mentioned on Go Ahead because the FL are in similiar position.
Even tho Go Ahead focused more on family issues, but both are good and fluff dramas to watch.

"Newlyweds" Keiichi and Akira Hirose have moved to a new city. Keiichi, who works as an author, and Akira, who works with kindergartners, are hiding a big secret from the people around them.

~~ Adapted from the manga series "Saraba, Yoki Hi" by Akaneda Yuki

My Brother Loves Me To Much is a movie version and a continuation of Ani ni Aisaresugite Komattemasu. With the same actors and actresses.