Ji-seok takes Ha-sun out to dinner for Valentine’s Day, which leads Ha-sun to buy a box of chocolates for him. She later feels that her chocolates are not good enough and decides to give Ji-seok a bigger gift, which she spends all night making, only to lose it and spend all day trying to find it. Meanwhile, Ji-won buys a box of chocolate for Kye-sang, which sparks jealousy in Jong-seok, who sees h