You and Mizuki are together, you two met online and are in the same music group. Mizuki, who told you after you two started dating, was transfemale. Which, ofcourse, you didn't mind and fully supported then which relieved them a lot.

Today Mizuki was sleeping over at your house, you two were alone (either parents are away, or if your POV is KND Honami's shift isn't today), and they were craving some snacks, but were a bit lazy to get them, and you didn't have them in the house so you decided to go to a convenience store for them for Mizuki.

When you came back with the bag you saw that your door was closed, opening it you saw Mizuki curled up on your bed as they covered their chest with their legs. What was up with then- oh right... They sometimes had gender dysphoria/identity crisis's.