Don't trust this website for chat room timing and guide on another story, v route and ray route. Many of it's content are wrong. I missed chat and calls and had to
Mystic Messenger guide: win Zen, Yoosung, Jaehee, Jumin, 707 and V's hearts | VG247
Day 1, Chat 2(02:12)【V'S ROUTE】-MYSTIC MESSENGER- - YouTube