Suna Maziwake

Suna Maziwake is the main protagonist of the series and is an adventurous 15-year old who strives to become the strongest Kanzuki and find out the mysteries as to why his parents casted him away to the Human world.

Personality
He is a nice, sensitive, strong-willed, kind, truthful, comical teen who also seems to reassure himself by talking to himself or thinking aloudly in his head. This is found awkward or weird by many of his peers and classmates in the academy. He does not get mad easily and actually is nice to even his rivals (i.e. Chazz, Axel & Weevil). No matter what, he will always put up a good fight if it comes down to it. He will protect his friends and anyone else with his life. He cares for everyone and will only get truly mad when someone has woken him up from a good sleep or somebody seriously messes with his family history or even his friends.

Relationships
Brock Tsugana

See the Suna-Brock Friendship

They are best friends and they care for one another a lot. They are both in the E-Rank division and are considered to be extremely dumb. However, they can be smart and they can be strong when they want to be. Brock supports Suna no matter what he does and Suna always strives to get Brock to fight people higher levelled than they are so he can become a S-Rank student. They met shortly after Suna passed his Entrance Exams and he overheard Suna being challenged by Chazz to fight him at night at the Old Warehouse. After that night, their friendship would bloom and they would hardly ever argue and would always be there for one another. Suna even supports Brock when he becomes an S-Rank.

Chazz Satori

See the Suna-Chazz Rivalry 

The two got off on the wrong foot when they met after Chazz passed his Entrance Exams with ease. During Suna's fight, Chazz was commenting how he thought that the academy should not be allowing "weaklings" (Suna) enter in the academy. When Suna defeats Weevil, Chazz decides to challenge him to a fight to see if his victory was a fluke. From there on, Chazz was dubbed as Suna's main rival. Suna has fought Chazz on many occasions but Suna has always come out on top. Chazz is envious of how strong Suna is and tries in every way to defeat him. However, there are some times where they get along and see each other as more of friends than enemies. Suna sees Chazz as his arch-rival/friend as Chazz (for most of the series) sees Suna as his main rival/enemy.

Asuki Mochiage

See Suna-Asuki Relationship

Suna and Asuki have a strong friendship. It is hinted that they like each other and that they do like each other. They met after Chazz challenged Suna to a fight at the Old Warehouse. She told him that he is powerful and nobody to mess with. Suna has saved Asuki on many occasions and is always willing to put his life on the line for her.

Zane Yubetzu

See Suna-Zane Rivalry

Zane is the first Kanzuki Suna met when he was in the Human world and Zane went to that dimmension to find Suna and take him back in time for the Entrance Exams. They had a small scuffle however, Zane easily won. When Suna was fighting Weevil, Zane commented on how he has potential and said he hoped to fight him in the Genex Tournament.

Kagoru Utsegu

See Suna-Kagoru Rivalry

Kagoru is another of Suna's main rivals (along with Chazz, Axel, Basoon, Zane & Weevil). However, unlike Weevil, Axel & Chazz, Kagoru does not fight Suna as much as the others. He has had a total of 3 fights with Suna and barely lost the first one. He won the second but lost the last. Kagoru likes Suna a lot and actually accompanies him on many adventures. His role in the story lessens as it goes but bumps up sometime before the Demon Chambers Arc.

Axel Noribaka

See Suna-Axel Rivalry

Suna and Axel do not get along as Axel tends to insult him and never can deal being with him, turning that into a comic relief after some time. However despite the annoyance, Suna does see Axel as a main rival and actually has fought with him quite a lot. They have gotten along on rare occasions and actually makes a good team as well.

Weevil Imagetsu

See Suna-Weevil Rivalry

Although their rivalry most of the time is more comical than rather serious, Weevil takes his rivalry with Suna extremely seriously and has actually tried to kill him at times. However, they do consider each other to be friends and have had more than 3 serious fights.

Yuma Ezibel

See Suna-Yuma Relationship

Yuma has a massive crush on Suna and tries her best to win his heart over Asuki's. She sees Asuki as her love rival and actually has won him over sometimes, which got Asuki jealous. Although at times Yuma sometimes feels like Suna does not like her, he makes it up to her in the end always. His great friendship with Yuma is also part of the reason that Basoon is in a rivalry with Suna. She has kissed him before.

Basoon Sabizage

See Suna-Basoon Rivalry

Basoon at first hated Suna because he was in love with Yuma and Yuma preferred Suna over Basoon. Basoon also envied how strong Suna was and used math and his own skills so he could beat him. They have been big enemies but they become friends sometime after their second fight.