NekuSoul

Helck is simply continuing from last season, so it’s neither new nor a sequel.

Other than that I agree. I was initially sceptical if something with such a simple premise could hold my attention beyond a few episodes, but the show has evolved so much that that worry seems silly now. Great anime.

The profile page OP linked says “Since 2006”, so ~17 years.

But as you said, that’s still a lot. I didn’t start too much later and am “only” at 128.8 days.