Category: Mako-chan Kaihatsu Nikki
Synopsis: After being confessed to, her heart is aflutter. She can’t calm down and has to go relieve herself in her room.
Her older brother moved in a while back and comes into her room “Hey I know what you’ve been doing in here…”
Alternate Names: まこちゃん開発日記
Aired: Jul 2, 2021 to Jan 1, 2023
Producers: Lune Pictures
Source: Manga