异世界四重奏Ali Osman is a former bully of city of Istanbul. But lately he gives up bully and starts to operate a synthetic pitch. He often meets his old friends, former bullies, too. One day Ali Osman receives a news which is related with his previous passionate life. Then the whole action stats as a chain of events. He learns not only he has had a son named as a Murat, also he realizes that his son has got a enemy called as Devran for his son's relationship with a attractive and fine girl, Karaca.