Somi is related to hando's past, she is his sister(not biological). Hando was adopted by this really rich family and received a lot of love from them untill, their biological daughter was born. After her birth he felt sidelined and jealousy led him to reaveal his animal pig form, and after that those bitches(rich adoptive parents) started abusing him. The abuse was really bad, years passed and he was locked up in a very shabby cage like room where he was abused. One day his sister(somi) went up to that room and gave him some packaged food, where she hid the key of the locked room. After that he ran away and met nam oran(gyunwoo,hando,yuri and gihan's current"mom") and started living a new life. And now somi and hando again met in the bus accident caused by the spider.
Currently pungbaek is i think using his powers and messing with somi's family, her bitch of a father is acting wierd and her mon is hospitalised and somehow her avoidant father cares about nothing but pungbaek so like yeah I m pretty sure we are gonna get more of Somi later in the story.
Can someone explain somi story