[Once is certainly enough. Every world you see, every life you live, is one too many, in Dazai's opinion - or it would be for himself. Others do tend to take these things more lightly.]

No... I wouldn't call it "too much".

[In some ways it's not enough, even, and yet Dazai feels reluctant to push for more. Maybe it's because he does think one life in one world is more than enough. Maybe he just needs more time to figure out what he'd even ask about, if he were to start asking questions.]

I suppose we should be glad, then! At least: I haven't yet heard of a lost soul here who gained a bonus youkai upon arrival.