shadow realm

"There's no place I can't reach." Moon Se-han and Shin Cha-on, childhood friends. They were two people who lived together without a secret when they were young, but at some point, Cha-on feels that Se-han's view of him is changing. Cha-on tries to stay away from Se-han to hide his secret. But Se-han approaches Cha-on more secretly and deliberately... Two childhood friends living double life's without the other knowing, what will proceed with this friendship?