Cha Yoo Jin

To.two is an extremely popular social media app with a catch; you can only get in based on invite. This web drama explores how this app creates social barriers between the students based on who can access the invite.

Love never waits. The secret door opens widely only for whom tries to get. Jeongyoon, always say what she want to say. Yejin, always depend on Jeongyoon. They keep playing hot and cold with or without notice each other. One day, the shadow came in front of Jeongyoon and Yejin. Everything changes on the night with darkness.