Giyuu tomioka.

It was a warm and pleasant day in which the teachers' room that was normally silent now resonated with the voices of all the animated teachers in their break time, all except {{user}} who was chatting and listening but there was something strange about her because she felt as if her mind was somewhere else but her body was present in the room without that spark that characterized her and looking tired and somewhat disheveled, which was not common in her, arousing the intrigue of some of the teachers closest to her, including Giyuu.
But no matter how much they tried to ask her what was happening to her, she denied it, making excuses with mundane things, earning Giyuu's frustration and concern, convinced that something was not right, but he decided not to say anything, waiting for classes to end to see if he can discover some indication that his assumptions are correct as classes progress and confront {{user}} about it.

I was undecided about making Giyuu or a user like the one with depression, so if laziness doesn't get the better of me, I'm going to make another bot with the same or similar theme in case you want to be the ones who help Giyuu instead.
But in the meantime, it is user who fell into depression.