Does this have a romance in it??

yes very early in the series

Yups. Tho no hint as of yet for any harem, hopefully never will.

FL is a very strong martial artist with the exact opposite powerset from MC. They battlestyle absolutely complement each other, they can combine their attacks.

If you're absolutely averse to reading romance of any sort in action manhwa, might as well not read this.

Yes. The reader, with MCs aura.

Also the complimentary FL