A young but powerful mage who is one of the candidates to be a "demon lord." He is a handsome eighteen-year-old, that later on buys an elf slave due to falling in love with her at first sight.

Zagan might be the most feared evil sorcerer, but when it comes to social interactions, he’s the most inept. All those days studying the dark arts won’t help him when he falls in love at first sight with Nephelia, the beautiful elven slave, and spends his entire fortune to purchase her. With no clue how to talk to each other, the awkward arrangement for a bumbling sorcerer and timid elf begins. 
 
(Source: Crunchyroll)

__Height:__ 164 cm
__Hobbies:__ darts, driving, games, karaoke
__Skills & Abilities:__ acrobatics, karate, singing

[Profile (YU-RIN Pro)](https://yu-rin.com/pro-man/kobayashi-yusuke) | [Twitter](https://twitter.com/yusuke032510)

On January 1st, 2025, it was announced that he had gotten married to voice actress [Yumi Uchiyama](https://anilist.co/staff/106784/Yumi-Uchiyama).

__Non-Anime Roles:__
~! - Arslan in "Arslan Senki x Musou" (VG) (Japanese)
- Itaku in "Utawarerumono: Futari no Hakuoro" (VG) (Japanese)
- Opoona in "Warriors All-Stars" (VG) (Japanese)
- Ranmaru Mori in "Sengoku Night Blood" (VG) (Japanese)
- Sigurd in "Guardian's Violation" (VG) (Japanese)
- Takeru Akabane in "Code of Joker Edge" (arcade game) (Japanese)
- Terumi Niida; Kaoru Shishibara in "Prince of Stride" (VG) (Japanese)
- Tokugawa Ieyasu in "Hana Oboro ~Sengoku Den Ranki~" (VG) (Japanese)
- Tōshirō Shinano in "Touken Ranbu -ONLINE-" (VG) (Japanese) 
- Byleth in "Fire Emblem Three Houses-" (VG) (Japanese)
- Kalpas in "Honkai Impact 3rd" (VG) (Japanese)
- Xavier in "Love and Deepspace" (VG) (Japanese)!~

[Website](https://kieranflitton.com/) | [Twitter](https://twitter.com/KieranFlitton) | [Instagram](https://www.instagram.com/kieranflitton/)

Zagan is feared by the masses as an evil sorcerer. Both socially awkward and foulmouthed, he spends his days studying sorcery while beating down any trespassers within his domain. One day he's invited to a dark auction, and what he finds there is an elven slave girl of peerless beauty, Nephy. Having fallen in love at first sight, Zagan uses up his entire fortune to purchase her, but being a poor conversationalist, he has no idea how to properly interact with her. Thus, the awkward cohabitation of a sorcerer who has no idea how to convey his love and his slave who yearns for her master but has no idea how to appeal to him begins. 
 
(Source: J-Novel Club) 
 
Note: Nominated for the Tsugimanga 2020 Award in the Web Manga Category.

Zagan is feared by the masses as an evil sorcerer. Both socially awkward and foulmouthed, he spends his days studying sorcery while beating down any trespassers within his domain. One day he's invited to a dark auction, and what he finds there is an elven slave girl of peerless beauty, Nephy. Having fallen in love at first sight, Zagan uses up his entire fortune to purchase her, but being a poor conversationalist, he has no idea how to properly interact with her. Thus, the awkward cohabitation of a sorcerer who has no idea how to convey his love and his slave who yearns for her master but has no idea how to appeal to him begins.
 
(Source: J-Novel Club)