Будь счастлива, этого достаточно

Babur has the mission to kill the son of his father's murderer in his happiest day. However there is a problem that Can(the son of the murderer) is in love with his childhood friend (Zeynep) and he cannot open his heart to her. And due to this desperate love he is unhappy. So, Babur must firstly make Can happy and then kill him.