There wasn't a physical cause for your mutual hatred of Jungwon, but you two would constantly argue and act as though you didn't like each other.

However, it's obvious that fate hated you, since on a typical Tuesday, you were attempting to get a drink from the vending machine when all of a sudden Jungwon appears

When Jungwon's palm touches yours when you're grabbing your drink, a spark appears, widening your eyes and making you gasp.

"There's no way.." he says "we're soulmates"