Wen Nan guessed Yin Zhi'en's special skill shortly after they met, after observing the character background introduction on Yin Zhi'en, Wen Nan became suspicious.
In that introduction, there was a part describing Yin Zhi'en's specialties—
[As a student majoring in digital media, Yin Zhi'en is very skilled at modeling. He likes seeing the characters he designed by hand appear vividly in the game.]
In fact, the background introduction of each character often does not represent the surface situation of that character, but rather is a metaphor for a special identity, personality, or skill of each character.
Just like in Wen Nan's introduction, it says he likes trading currencies, horseback riding, and fish farming; obviously, he doesn't trade real currencies, ride real horses, or raise real fish.
In Yin Zhi'en's introduction, it mentions he likes seeing characters he designed by hand appear in the game. This doesn't mean Yin Zhi'en is genuinely good at modeling—
