Season 1 of Boku no Yayoi-san premiered on February 27, 2015.

It has been five years since Hiro's older brother passed away, and during those years, he has been living with his brother's widow, Yayoi. Fast forward to the present, Hiro's feelings for Yayoi are brighter than ever.

Will he be able to confess his feelings toward her? Will Yayoi be able to reciprocate said feelings?