They should just make and act where MC uses ancient naryu devise to come back in time before Mushin killed Jiwon so you can own his sorry ass and just be badass as hell. Now that would be something. An act where MC is just untouchable killing machine trampling his enemies left and right with wide smile. For once not being punching bag but doing the punching. Cause right now for a great hero he's total pushover. MC keeps faling into a traps, after traps and more traps even tough you can tell it's trap from amile away. Seriously it's beyond annoying. To the point it would be better to not have story quests.
And before someone says it's not hongmoon style, it's totally hongmoon style. You are suppsed to do good, and killing bad guys is doing good. Letting them live is doing evil. So following hongmoon MC should kill all enemies, not get betrayed by them, punched, folled, betrayed again. Same was with mushin legancy quest in cinderlands. There was time to cut Lusong head and then use legacy to save Yunhwa, it takes like what? Not even second. One doesn't exclude other, but do. Our MC need to be pushover.