Yaoi porn manhwa Jinx. Part 20

I don't know about you, but to be honest, I'm really looking forward to at least some plot development, but in Jinx part 20, the characters still do nothing but "fuck and cry." When will they finally tell us what kind of terrible jinx lies on Joo Jae Kyung... To hell with romance and the appearance of adequacy in a boxer, but they could have at least told something about the main feature of the manhwa, otherwise we only know that Jae Kyung needs to have sex before the fight.