What's an anime you'd give anything to get a second season of?

(even if you'll probably never get it)

My pick is So I'm a spider, so what?

I loved it then and rewatching it years later I'm more impressed with it than I was then. The OP and ED are solid and enjoyable, the character development is fun and the battles seem genuinely harrowing. Character designs are cool and since there aren't many characters the evolutions of the MC all look unique and interesting. Plus it ends on kind of a cliffhanger, so I'd do anything to get a second season. Probably never will but I highly recommend to anyone who loves an isekai where every goes haywire