Luahn, Xuimin, Lay, Chen, Kris, and Tao are like any other EXO beings, anxious about receiving their assigned person to protect on earth. They’ve reached the age where they are assigned a person they must protect, they had been grouped together since birth, and trained together to be able to look after one person. When they’re assigned to a eighteen year old human girl named Li Mei, they vow to protect her. However, when they find her to be a target of a local gang Exo M's skills are put to the test and Kri's feelings toward Li Mei develop into something more than a duty to protect her. Will they be able to protect Li Mei, but more importantly, will they be able to stop the forbidden feelings Kris has for her?

He can't have it both ways. Will he gamble with her life to be with her, or give her up to save her?