Freshman Yulmoo’s Club Life

Ji Yul-moo is a first-year student who appears shy and studious, often seen with oversized clothes and thick-rimmed glasses. On the surface, she seems entirely focused on academics. However, hidden beneath her reserved appearance is a green notebook she carries everywhere — a private journal filled with bold, provocative fantasies.

One day, Jeongwook, a senior she secretly admires, stumbles upon her notebook and flips through its pages.

“I’ve been wanting to meet you, Ji Yul-moo.”
“M-me? But… why?”
“I read what you wrote. It was incredible.”
“…!”
“Would you like to talk about it?”

Instead of judging her, Jeongwook invites Yul-moo to join his exclusive club — one centered around thrilling, unconventional experiences known only as the X-game.