Does one have memories while the other doesn't?

Only Seolhyun had his memories with Hwa as he begged Ino not to erase the memories back then. He begged not to erase it since those memories with Hwa were the only precious thing he got. As for Hwa, I think he completely forgot his memories with Seolhyun. Hopefully he'll gain his memories back :'(

So how come Seolhyun still believes he is a male Lycan? Unless some of his memories and not ALL, were erased?

I'm not quite sure about it as the story doesn't unfold their past yet. Seemed to me that he was told by his adoptive parents that he was a male lycan and he believed it all the way. The parents also thought Seolhyun was a male lycan and literally adopted him as a future partner of their biological son. FYI that biological son is a female lycan.

Now I get it. Thanks a lot.

My pleasure