AMBI-214 I made my shut-in sister try a dating app… Nagisa Takaboshi

Nagisa, a sister who tends to be a shut-in and has severe brother complex. Her brother, deeply worried about her future, suggests using a matching app as an opportunity for her to interact with others. Nagisa decided to meet up with a man but unfortunately ended up with the worst kind of scumbag, who ruthlessly set her up.
Seeing his important little sister injured and crushed, the brother vowed in his heart never to let her go again. Then the two of them, to fill their wounded hearts, deeply confirmed their bond while consoling each other intensely.