The biggest twist in drama moving

(1)Introducing Cha Taehyun to the bus company in Moving
(2)the role of a good-hearted senior
(3)The real actor is Lee Dongyong
(4)Born in 79 for Lee Dongyong
(5)Cha Taehyun, born in 1976
(6)Cha Taehyun is a 3-year-old hyung