Twelve years ago: They made an agreement because of the paper cranes, but who would have thought of their separation a few days later. Twelve years later: "Baby, I've been waiting for you for twelve years, you should finally satisfy me!" "We... I... We... We... Ahhh...~~~Song Yang, you bastard!! 5555555~" "Don't cry, I will be heartbroken!" Twelve years later, they renewed their relationship again!