1x22 - Angel's Last Mission: Love

Yeong Ja gets to know that Ru Na schemed to kill Yeon Seo. Ni Na tells Kang Woo that she will be Yeon Seo’s understudy. Yeon Seo thinks Dan is hiding something from her, so she sneaks into his room. Meanwhile, Dan gets to know that Kang Woo was the angel who fell in love with a human.