They switched identities because of the names. So technically (real) Han Sang Yul isn’t suppose to be responding to his name because that what people know the other guy as. Han Sang Yul is associated as the pharmaceutical CEO’s omega son.
The used Han Sang Yul’s name (his real name) but then they made the other guy use his name instead because everyone thought Han Sang Yul was the CEO’s son.
Oh no... he so young.. OMG...this is not funny thing.. even in real life.. omg this is so cruel.. he so young.. 14 yo when he having a fever.. oh no..i think i want to cry...
What happened to all 3 cuties..silver dark blonde hair guys... why the princess end up with brown guy...?! Hurm ( ̄∇ ̄")
Cuz they are her friends.
Bc the author wants to hurt our heart, as well as create more plot
Here's the spoiler thread if you would like it:
https://forum.novelupdates.com/threads/when-the-villainess-loves-%EC%95%85%EB%85%80%EA%B0%80-%EC%82%AC%EB%9E%91%ED%95%A0-%EB%95%8C.112441/