In the ending of "The Scumbag's Wish", Mai and Hanabi are not together.

Mugi and Hanabi are not together. Mugi and Hanabi finally let go of their obsessions and feelings for others. They no longer need each other's bodies, and they no longer need to satisfy themselves through others. Their hearts don't belong to anyone. Even if they let go, Mai and Hanabi still haven't come together.

Emotional lines between the male protagonist and the female protagonist:

Both the male protagonist and the female protagonist have their own crushes (the male protagonist has a crush on his former tutor, and the female protagonist has a crush on a Mandarin teacher), so the male protagonist and the female protagonist, who were unable to confess their love, got together, and the two agreed to become each other's substitute lovers (not really in love, just unrequited love dogs to keep each other warm).

However, in fact, the tutor whom the male protagonist has a crush on is a scary woman with a pink and black face, but the male protagonist still falls in love with her pretended innocence. In addition, the male protagonist has an affair with this tutor. They had a relationship, and the tutor also had a relationship with the Mandarin teacher that the heroine had a crush on. Moreover, the hero also had a fixed friend despite having a substitute lover and a crush, and took away the senior sister who was his first night. In the end The heroine seems to really like the hero.