The story of Yeon-Hee who appears to be having a happily married life but is actually experiencing domestic violence. Little by little, Yeon-Hee begins to fall into danger after her SNS account was hacked.
六名女子因一个共同的“朋友”—疯狂—而结缘。它造访我们每个人，促使我们提炼现实，做出大胆的决定， 并改变我们的生活。
最终话里两人许下了爱的誓言，海音回到了大海里。三年后出现在伦太郎面前的会是……？
