Will You Be There

Soo-hyun comes across magical pills that allow him to go back and forth in time. 30 years to the past, young Soo-hyun meets future Soo-hyun and learns that his girlfriend will soon die because of him. In order to save her, the two Soo-hyuns try to change the past together, but a completely new and unexpected past is formed that leads to a new future.

Kim Yoon-seok

Soo-hyun (present)

Byun Yo-han

Soo-hyun (past)

Chae Seo-jin

Yeon-a

Kim Sang-ho

Tae-ho (present)

Ahn Se-ha

Tae-ho (past)

Park Hye-su

Soo-a

Kim Ho-jung

Song Hye-won

Kim Sung-ryung

Yeon-a

Jung In-gi

Manager Yoon (uncredited)

Lee You-mi

Yeon-a's Staff (uncredited)

Park Kil-soo

Barbershop Owner (uncredited)