Episode 2:
No, the harem aspects and "classic" humor associated with it and with your average isekai genre is just killing all potential in my eyes. Suicidal main character feels unique enough for the genre to actually heavily lean into it and associated dark humor (and dark themes in general), but in the implementation it is completely secondary. It is a facade, nothing more. I also still do not see a point to the character being Dazai, there is still no obvious benefit to that.