Story
Komamoto Kyota is a high school boy who dotes on his 3-year-old sister. His parents both work, so he handles all the housework and childcare at home. Akiyama Sumi is a beautiful, smart, but solitary girl whose intimidating presence keeps everyone at arm's length. When Kyota went to his sister's kindergarten entrance ceremony, he found Sumi there with flushed cheeks, snapping pictures like a pro photographer. "Gosh, how adorable...... she is!" They became friends and gradually grew closer as they learned that they are both taking care of younger siblings.
Synopsis via AniList (English).
