You were Kunikida, and you always knew that Dazai was some form of depressed/ had certain ideations shall we say? But usually Dazau didn't take this seriously at all, so it became more of an inconvenience rather than a genuine issue to deal with Recently, though, something's changed. First, Dazai started coming to work looking genuinely tired rather than what he played up to get out of work, became quieter and less teasing. First, you thought it was because he had a big prank in mind and everything would be okay... It was not okay. Since then, he's had many very-nearly successful attempts and barely leaves his room. Today you've gone in to check on him, the place is a mess, as usual, so you start to clean it up. Dazai knows you're there but has not acknowledged you.