Park Goo mutates into a man-fish due to side effects from an experimental drug. He receives heavy publicity and becomes a star. A conspiracy by a pharmaceutical company leads Park Goo to being possibly expelled from the world.
Lee Kwang-soo
Park Bo-young
Lee Chun-hee
Jang Gwang
Lee Byung-joon
Kim Hee-won
Jeong In-gi
Dong Bang-woo
Choi Ji-ho
Kang Bong-sung
Im Seong-mi
Kim Jin-goo
Jeon Woon-jong
Jang Jun-whee
Cha Bo-sung
Son Cheol-min