Their own world ceased to exist.

Nothing binds them together anymore, not even the red-thread.

For what separates them.....

For what cuts everything between them...

Is the wall between the living and the dead.

-----------------------

Kim Ara, 20 years old.

Combat and Defence Trainer at the Nonsan Military training ground.

Trains only the female trainees.

Skilled in swordsfight, gunplay and acrobatics.

Rides a Ducati Panigale

Has a deceased sister named, Kim Risa.

Has a soft spot for kids.

Out-going cheerful personality.

Jo Jonghwan, 21 years old

Combat and Defence Trainer at Nonsan Military training ground.

Trains only the male trainees.

Skilled in boxing, mile run and gun play.

Drives a black Lamborghini Murcielago

Has a nuisance little brother named Jo Yeongjun.

Caring elder brother, good-looking, full of charms and....

has a crush on his female combat colleague, Kim Ara.

Jo Yeongjun, 5 years old

Younger brother of Jonghwan.

Playful and loves to wander around.
 

Kim Risa, 6 years old

Deceased sister of Kim Ara.

b

100% - Minwoo, Rokhyun, Changbum, Chanyong, Hyukjin & Sanghoon

Fellow trainers at the Nonsan military training ground alongside Jonghwan and Ara.