Male Lead
Actually OSC actually met the original MX as a child. He was the one who saved her after she was given the cold poison, but since the culprit is a master martial artist, OSC as a child got heavily injured protecting her causing his father to immediately seek help so the father left MX in a discoverable place while he took OSC to get help. That is also the reason for OSC's type of cultivation method, he chose that knowing that it may help in curing the cold poison..
Note: huh, his meeting as a child and saving her was actually revealed in the first spoilers given. Sorry, i think i need to re-read the earlier pages to see if i repeated some info..
@alexfilia as usual, it was MX that did the revenge, she shot back at the cousin displaying her father's famous archery skill. Unfortunately, MX hasn't got enough to kick them out of Murong fu yet. And they lived in the Murong fu, because even though their whole branch is rotten to the core, the uncle is still a son of the Murong family.