"Ano sikreto mo!?" In which Mingyu became a note-taker of a client named, Jeon Wonwoo.

Kim Mingyu grew up in an area with a couple of kids living in that area but they are older than him by a couple of years and they would always bully him since his the youngest. One day Mingyu wakes up to a noise and looks out the window to see the house next door was bought and people were moving in. He saw a teenage boy who looks 16 years old, like him. That teenage boy is Jeon Wonwoo. A cold guy that always looks sad, likes to be lonely and doesn't want friends, the complete opposite of Mingyu.

"Let's talk about us, Wonwoo." "Us? Nakakain ba 'yon?"

During training Wonwoo and Mingyu had fallen for each other. They even started dating. Now, with their debut coming soon, what are they going to do? They're going to tell the rest of the members. How will they take it? What will happen to the once perfectly happy couple? (First book of my seventeen stories.)