Rapper and vocalist. He is half Turkish and half Japanese. He is a music producer and has been making music since his teenage years. He’s made the majority of SUPER★DRAGON's songs since their major debut, including NPC, Dark Heroes, Concealer, etc. Other artists Jean has composed music for include the j-idol group ICEx. Fellow vocalists Tsuyoshi, Hyoma, Koki, and Tomoya would often go to Jean’s house to make SUPER★
DRAGON's music ”on his bunk bed”. Since 2025, Jean now has his own studio that he rents out with a couple of his friends.

Jean is active as a solo artist under the name “jjean”, making (hyper)pop and R&B music. He cites joji, brakence, and keshi as some of his favorite artists and inspirations. Although he mostly takes the music making role in the group, he also loves fashion and will sometimes handle SUPER★DRAGON's outfits, such as with Concealer or NPC. He has released two EPs so far: Acclimation (2024), and Perfect Pair (2025).

His father is Turkish and his mother is Japanese. He lived in Turkey for four years when he was a child. He took English classes when he was 17 and can speak basic English, but is not yet able to speak Turkish fluently. The Turkish lyrics in his songs are usually translated for him by his dad.

He stylizes his stage name as “Jean Kayto”, but typically it would be written as “Can Kaito”. Both names are his given names, and his surname is unknown. The name “Can” means “soul/life” in Turkish, while the Japanese kanji that make up 海渡 (Kaito) are “sea” and “crossing”. According to Jean’s parents, he was named with the hopes of his “soul carrying/traveling across the seas and all over the world”.

Jean is very positive and outgoing, he is the mood-maker of the group and is usually the one to make everyone laugh. Despite his class clown personality and being known as a prankster however, he is actually somewhat of a scaredy cat and is deathly afraid of bugs, heights, and riding rollercoasters.

In 2017, Jean, along with fellow member Tsuyoshi, independently started a joint instagram account called tsuyojean_official out of their shared love for fashion. Jean has been modeling since he was young, and he often jokes that he's been "working since 0 years old" as his first "gig" was as a 3 month old baby for a magazine.
Him and Tsuyoshi gained popularity as a modeling duo and would appear in magazines and runways together, often credited as “tsuyojean” together as one unit.

The both of them have since made individual instagram accounts and are now more focused on making music instead of modelling, thus updates on this account are now quite rare. They will still (very) occasionally post on it however, as the two have gone on record to say that the account is like "their home". Tsuyoshi and Jean’s fashion tastes tend to overlap, and they are often seen wearing matching clothing items and accessories.

Aside from fashion, Tsuyoshi and Jean are very "linked musically" and often compose music together, which is something they've been doing since they were teenagers for fun. They consider each other "partners" (in crime) and "rivals".

My favorite member along with Tsuyoshi. When I found out he was the main person responsible for making the group’s music and that he has soundcloud hyperpop roots, I simply had to become a fan... It’s crazy how good he is at everything he does, rapping, singing, beatboxing, making music… It all seems so effortless to him, but really, he's just an incredibly hard worker! Apparently when Tsuyoshi met Jean for the first time when they were kids, Jean was terrible at singing. Can you even imagine that?! My favorite thing about Jean is definitely the way he makes people laugh and lights up the room! My recommended must watch Jean performance is his cover of Koki’s AI KOTOBA, which he performed in Turkish (with lyrics translated by his father) during DRA FES 2024. It makes my heart burst every time.