Why do most Korean dramas have kissing scenes in the eighth episode?

In fact, it's just a coincidence. At that time, several sets of Korean dramas were all about kissing in the eighth episode. In addition, the eighth episode is the middle of the plot development (most Korean dramas are 16-20 episodes), so there is a breakthrough in the relationship between the hero and heroine, and there is a kiss.

The eighth episode, there is a kissing scene:

"You from the Stars"-Professor Du (Kim Soo Hyun) can't help kissing because money (decoration) turns into a "15 second elf";

"Heirs"-Jintan (Lee MinHo) performs a kiss on the roof to appease the threatened Che Enshang (Park Shin Hye);

"Hear Your Voice"-The "Kiss of Aquarium Parting" by Park Soo-ha (Lee Jong Suk) and Zhang Comet (Zhang Comet), the sad picture made many audiences feel distressed at that time;

Wang Shizi in the tower room-Pu He (Han Zhimin) performed a mouth-to-mouth kiss to save the food-sensitive Wang Shizi Li Ke (Park Youchun);

"It doesn't matter, it's love"-Zhang Zailie (Song Zu Ying) and Chi Haixiu (Kong Xiaozhen) kissed sweetly when they were traveling in Japan, and the relationship went further.