After graduating from one of the most pretigious school in Seoul, Elite Ko Business and Engineer University, Kris Wu was ready to take over his father's empire, but there was one catch - he must married the woman of his parent's choosing.  At only 23 years old, he was not ready to settle down yet although he may have dated occassionally throughout his years in school but none of them have left a deep impression except one. 

Luna.  That was all she was willing to give him when the two met at an event however he never seen even once since then but kept his eyes open, hoping she would appear in front of him by chance.  Three years later, still no sign - Luna, at 21 was at the top of her game and graduated earlier than expected at the age of 19 and works for an independent consultant for EIB.

When Kris Wu finally sees the girl of his dream again, he was thrilled to be reunited, however the girl who he thought was the one from the past - was not.  She introduces herself as Luna Park and the woman their parents have arranged to be his wife - but wanted OUT.