Even if it cost my life

Thinking about the consequences of his actions, Mo YuMin is anticipating that Li FuJin might do something against him after he took YuYan away.     

"We replaced him, she'll have vague memories of what happened between them" Mo YuMin answered. "Just pretend that it was you, I'll take care the rest"     

Lu JunShi: "..."     

Replaced?!  Are you out of your mind?!   How can you do that to your own sister?!

There was bewilderment at Lu JunShi's face after contemplating Mo YuMin's words, but his heart began throbbing thinking that there's something wrong for this to happen.

With a heavy heart, Lu JunShi opened his mouth, but he doesn't know what to say. Pretending to be someone else especially as a fiancee is a big challenge for him.

Moreover, despite his handsome appearance, Lu JunShi never had time to look at any woman, or rather he never tried to get near to any girl because of his love for YuYan.