Love it! I find it very different from other Marvel/Dc storys and i can't wait to see where you take it from here.

2,5,7,15 and possible 5th 4 or 14

Yes

Release That Witch, loved the story and see potential, 2nd choice would be Magic High.

3rd option. I believe it will give more options in the future. Such as rivals or straight enemies, or likewise friends or a mix and can use it to help with later plot. + I personally don't hate Yun Che, actually like his character albeit a little torn how he can be a massive perv 1 chapter and dead serious kill em all the next. Did like original story though so i guess it works at least for me.

Don't drop. I think it is good so far, like the way its coming along and look forward to seeing how it play out as well as future interactions with other heroes/villains.

I think a DxD arc would be interesting. With the whole death of God, alliance peace talk, how mc would handle Issei and the "villians" of the DxD universe, and i could totally see him adopting a certain loli dragon as a grandchild. Though i dont see it being done in a couple chapters