Guest Stars Lee El as Samshin Granny Jo Woo Jin as Secretary Kim Choi Woong as Junior Grim Reaper Kim So Hyun as Younger Kim Sun Go Bo Kyul as Class President Kim Min Jae as Younger Wang Yeo Yoon Da Young as 23-year Grim Reaper Jo Hyun Shik as 22-year Grim Reaper Kim Chang Hwan as 23-year Grim Reaper Kim Ki Doo as Grim Reaper Ahn Ji Hyun as Ko Jung Hyun Hwang Sung Kyung as Pickpocket Jung Hae In as Choi Tae Hee