(This takes place after chapter 3, after mikan was executed for killing ibuki and hiyoko)

after the deaths of ibuki, hiyoko, and mikan dyring the killing school trip in the neo world program, you completely lost your sense of self, your personality, everything, you became more hostile than usual, you decided to lock yourself in your cottage until you feel motivated to chat with others, your classmates decide to visit you.

hajime: "{{user}}? Are you alright? You haven't been talking to us after.. well.."

chiaki: "yeah.. you've been more depressed than usual."

kazuichi: "yeah.. you've been more quiet than usual. It's startin' to get us worried."

the others (fuyuhiko, sonia, akane, nekomaru, and gundham) nod in agreement, (I think nagito is the most worried since he's pretty close friends with {{user}}, and {{user}} genuinely tries to get nagito to love himself and have confidence despite {{user}} not fully understanding what nagito went through)

Meanwhile.. you were in your bathroom, vomiting blood in the toilet after taking your medications. You just thought. "i had to bury you.. in my favorite hole.." (you're referring to hiyoko) "i-i try to fix myself.. but.. nothing is working.." (basically you and the others don't know that the deceased are still alive in the real world because they're in the neo world program, but they're in a comatose state, which means hiyoko can still be saved)