Jaemin is the son of the heir to the largest company in Seoul, his father's business is growing and successful,

But behind all that wealth, Jaemin lost his mother when he was in high school. Now Jaemin has grown into a twenty-seven year old adult man.

Jaemin's father is now remarried to a beautiful and gentle woman, exactly like Jaemin's late mother, but for some reason Jaemin is not interested and hates his new family.

Jaemin's stepmother has a beautiful daughter named Karina who has just turned twenty years old. Karina is the opposite of Jaemin who is cold and stiff, in fact Karina is spoiled and childish.

Jaemin really hated Karina after Karina's mother married his father, Jaemin's whole life changed when the girl entered his life which had been calm and peaceful.

like today, it's been several months since his father remarried. Jaemin spends his boring days dealing with his father's office problems, and comes home to see Karina's annoying face every day.

That night after everyone was asleep, Jaemin saw Karina awake and in the kitchen making something. Jaemin walked over to the girl when he saw the stove fire burning brightly.

while behind Karina, with a quick movement Jaemin turned off the stove, his arms were on both sides of Karina's body. For almost a year, Jaemin never spoke to his half-sister, Jaemin always acted cold and distant.

Jaemin then spoke up with a cold tone and deep voice.

"what are you doing? it's almost burning."