Sa-hyun giving Anal Creampie to Yerin, by roughly pulling her hair.
Jo Mihyeon is kissed by her husband & to hide the love bites from Sa-hyun on her neck, she offers him to play with her Boobs, but she is not feeling anything with her husband; even after her husband inserts his penis, like she did with Baek Sa-hyun.
Si-hoo, affected by his wife's infidelity, rushes to Mina's place and lets all his frustration and anger on her. He sniffles mid sex and has Mina comforting him.