[Reducing Mosaic]AMBI-207 I let my shut-in sister try a dating app... Yumakami Miku

Miku, a younger sister who tends to be a shut-in and is brother-complexed. Her brother, worried about her future, suggests that she try interacting with others using a matching app for her sake. Miku gathers the courage to meet a man but unfortunately gets screwed over by a piece of shit. Her brother, enraged that his precious sister was hurt, vows never to let Miku go again, and the two comfort each other to affirm their bond.