Five years ago, flight attendant Iris was coerced by her father Ethan to use her seriously ill mother Elina to stop taking medication as a threat. She gave false testimony at a hearing about a plane crash, causing Silas, the first love of a talented pilot, to bear the blame and go to jail. Iris was subsequently expelled from her family and became a humble ground crew member, dragging her terminally ill body alone to earn sky-high medical expenses for her birth mother.
