Issues in converting 480i video to 1080i

[poisondeathray]

I don't care about Toon!verse logo. that is original 1080i logo, so It must have aliasing and halos.
and halo in frame edges and character also ok for me, because it is almost looking similar to original in my eye.

The logo and border are not important, but the artifact distribution are clues - because the halos around other objects , and if you check other scenes, are predominantly the same distribution. It suggests to me the settings are still slightly off

If you're happy that's all that matters . Personally I prefer fewer artifacts

[sdx12349]

ah, I thought I was satisfied, but ringing effect looking much worse in 2:1 pixel match than 1:1 pixel match.
I guess height value is almost perfect, so I added some resizing option.. the s=0 parameter.
It reduced some halos, but it's not perfect..
is this the limit that I could be done?

here's my result.

[poisondeathray]

ah, I thought I was satisfied, but ringing effect looking much worse in 2:1 pixel match than 1:1 pixel match.
I guess height value is almost perfect, so I added some resizing option.. the s=0 parameter.
It reduced some halos, but it's not perfect..
is this the limit that I could be done?

here's my result.

Besides fiddling with height and s, you can also try playing with the b,c settings

Otherwise you can try other adding other filters, AA, dehalo filters. There are dozens to choose from

Machine learning filters can definitely improve this, and there are many geared towards anime - However almost all will be trained on progressive images, not a field. If you separatefields, apply, then weave, there is a significant chance of distortions. You would need to IVTC, which you've made clear you don't want to do