@Mentor
Spoiler!
I stopped reading the novel after the Dragon-Phoenix tournament but I'm pretty sure Hi-Ah was interested in MC romantically especially when he treated her disease. She explained in detail that it was the first time in her life that she felt warm and warmth, she also considered that she'll die young but it suddenly changed bc of our MC. She even followed him to the Shaolin temple to say thank you but her actual reason was she just wanted to see him the reason why Bi-Ah got really Jealous. And from there, she always get flustered and blushing with MC's presence alone. But idk if she became one of his wives in the end since I'm not updated in the novel. It's a shame if she's not bc i really like her in the novel.
I don't care about your taste!