Someone please reco more of these type of dramas where lead starts off weak but becomes stronger (or the strongest). I've watched this drama, Douluo Continent, Heavenly Sword and Dragon Slaying Sabre, The martial universe (S1&2) and Ever Night(S1), and I really enjoyed those.
It was never expressed but it was obv they liked each other. At least jin han started to like xiang xia romantically, not sure if xiang xia liked him romantically or just admired him as a fan since the start...