Vivi

Oh Ye-Ju’s acting range is insane, the cute sassy competitive student here, vs the bitter and angsty young Son Hae-Young in No Gain No Love, vs the distressed, withdrawn Ye-Seo in Gangnam B-Side who turns to the dark side seeking revenge. So young and already on top of her game!

She found out what those two were up to and wanted a cut (of the money). She became a threat and could expose them.

Seong-Hui wanted to frame Jun-Tae as Min-Ah’s killer. JT was drugged and didn’t remember anything. He figured he killed her because his dad was a killer too and he must’ve inherited his thirst to kill. In a state of panic, he called his dad for help, and his dad dismembered her and took it all in the bag to bury in the mountain.