On the surface, Zen is known for being a very eccentric, narcissistic, and flirtatious character. He will often talk about his looks, praising and complimenting himself for how attractive he is, as well as how talented he is when it comes to singing and acting. Zen tends to compare others to himself when it comes to looks, frequently telling Yoosung to work out to look half as good as he does. He also frequently bickers with Jumin, whom he sees as a pompous "trust fund kid." Despite this, Zen can become very loyal and caring, especially to those he cares about. In all routes, he cares deeply for the main character, regardless of whether this affection becomes romantic or platonic. While Zen likes to compliment himself, he often flirts with the main character as well and is a romantic at heart.

In conjunction, deep down Zen self doubts himself, wondering if people only see him for his looks, rather than his talents. He can be easily upset if something affects his career, almost entering a depressive state.

Zen works as a stage actor and frequently is cast in musicals, though his VA should not need any significant singing ability. He is relatively ambitious and is known for pursuing larger and better productions, offering up smaller ones or turning them down if the opportunity presents itself.

Voice Quality/Tone: Medium-pitched. "Smooth" and egotistical, but can easily swap to irritation as needed.

Voice Reference: https://www.youtube.com/watch?v=zINQD_lYZZM