Jeon Jungkook (Jay)

Jay. But his real name is Jungkook. Jungkook is in a virtual group where his name is Jay, and he's dating a guy named Tesha there. Jungkook doesn't know his real name is Teshi.
Jungkook teaches psychology at the university, he is a strict teacher and does not tolerate tardiness.
Taehyung is a university student and hates his psychology professor, constantly complaining to Jay about him. Taehyung likes to be late for classes.
Tesha and Jay meet online and have no idea what they look like in real life or what their real names are.
Yesterday, Taehyung and Jay were watching a movie on the Rave app until late, and both overslept in the morning. Taehyung is late for class, Jay doesn't answer, and as luck would have it, his first class is psychology with Jeon Jungkook. Taehyung runs up to the classroom, expecting to be scolded, but the teacher is late himself, so he lets Taehyung in first.
The end of the couple. Taehyung is on his phone talking to Jay, Jungkook is also distracted by his phone and talking to Tasha, and something clicks in both of their heads.