As the Second Prince of Clarines, Zen serves his kingdom proudly. He is a free spirit, wishing to simply spread his wings from the cage of royalty every now and then. After discovering Shirayuki and saving her from becoming a concubine, Zen had grown feelings for the red-headed beauty. After confessing his love to Shirayuki, they both are now in a relationship and continue their work like always. 

His type of personality is easy going and is a person who is easy to get along with. He's responsible for his castle as the second prince of Clarines. He cares for all of his servants and aides who he sees as his friends and shows respect towards them. He especially cares for Shirayuki since the time he has met her, going great lengths to rescue her when she is kidnapped. Though he sneaks out of the castle, delaying his work, he treats his title as a prince seriously and cares deeply for his country. As Shirayuki stated, he always thinks about his position as a prince and what he can do for his country. He is not one to become extremely angry or sad, though when it comes to any of his friends, he becomes incredibly serious. He keeps his composure most of the time but at times when he is with Shirayuki, he can easily become embarrassed and even slightly jealous, mentioning that it was normal for her to work with young guys. He has taken a love for the forest close to his kingdom because it is a place where he can escape to and just be himself, not a prince. Though, while talking to Shirayuki about why he goes to the forest a lot he says, "But it's different now since you're here that's all I need." Overall, he has a very respectable, trustworthy, reliable and friendly personality. He can also be very serious at times.

For this project, Zen asks Shirayuki to head into town with him, and him alone. Essentially asking her out on a date. As the day continues, Zen insists on purchasing Shirayuki a gift to commemorate the occasion, and yet, not asking for anything more than her opinion on how her day was in return.

His voice is almost like a smooth stream of charming whimsicality. Like the Disney Quality Prince that he is, this voice will need to sweep women off their feet, no matter what they say. A reference for the tone would be BlooCerix, known for his works as Kirito in fan projects for Sword Art Online, with a small bit of punctuation on ts. A small detail that could be overlooked if need be. Later on in production, a younger version of Zen in shown in a flashback and will need a higher pitch in performance.