Sento Kiryu (Crossover War Heroes)

""Milinda and I do this duty for our heroes. Even if it means that Soichi Isurugi, Misora Isurugi, Rebecca Hawkins, and everyone died for us. I am very kind to them. We must fight and survive together. I knew the many wars are paining my life and hers.""

- Professor Sneto Kiryu

Sento Kiryu is one of the main protagonists in Crossover War Heroes, alongside Milinda Brantini, serving as the second-in-command of Tekkadan led by Marika Kato and the mentor to Milinda. He is the legendary war hero behind the deathly wars against the evil forces of tyrnical threats like: the Knights of Gjallarhorn. He was born from his homeplanet called Mars.

Personality
Sento Kiryu is a peaceful-hearted optimistic person, who is caring for his beloved  young friend/daughter, Milinda Brantini. Although, he shares the same similarities with Bugs Bunny from Looney Tunes and Orga Itsuka from Gundam. That's why, he remained good side in his heart. No evilness and Tyranny can corrupt him. He will remain safe during wars against many threats like Prozen and many villains.

Biography
Sento and Milinda joined Stark Industries at the same time, receiving the Alaya-Vijnana surgery without anesthesia. Sento was successfully trained to be a superhuman hero for his heroism.

In 2019, he and the gang were trained under the command of Marika Kato. Following the death of Thornheart, he and the heroes escort Futaba Ichinose and Chitose Kurasama to Earth under the name of Tekkadan, which is led by Marika Kato.

After the heroes left Mars, he and the heroes started their journey while escorting Futaba Ichinose and Chitose Karasuma. He and his friends were confronted by the people of the Knights of Gjallarhorn. However, Sento and his friends managed defeat and trick them by sending Flint Lockwood and Steve the Monkey to one of KOG Spaceships.

Remained alive, he and his friends continued their journey while taking good care of Futaba Ichinose and Chitose Karasuma by having a safe journey to earth. However, he and his friends were visited by Transylvanian Business led by Wataru Kurenai. When the training was started, he and his friends were training themselves to become stronger in order to defeat and kill Gunther Prozen and his wicked minions by avegning the deaths of Mikazuki Augus and the people of Tekkadan.

When the Bruters launched attack with their first attempts. Sento and his friends decided to rescue Hiroki Nagase and the rest of his brotherhood friends of Hokuto Three Crows under the command of Marika Kato and her followers. Following the successful rescue, Milinda Brantini and Sento Kiryu decided to discipline the rescued people a peaceful lesson.

After the defeat of The Bruters and the death of Yan Baihu, Sento Kiryu and the rest of the our heroes continued journey to Earth. When the arrival was done, he and his daughter met Luigi Latorre, Leo Conrad, Sally Land, Kanami Etou, Yugo Ogami and Alice Tsukagami. When the meeting was done, he and the heroes fight back against the Riotroopers, Mile's Quaritch's Soldiers, and Gjallarhorn soldiers. After Yugo and his wife were captured, he and the heroes were saved by Lime and Akira Yuki to go back to Tekkadan and Transylvanian Business. Sento Kiryu and the heroes notified Marika Kato and the others that Yugo Ogami and his wife were kidnapped by KOG. He and the heroes need to train more in order for them to get stronger.

After the death of Alice McCoy, Sento Kiryu and the heroes decided to team up with Dr. Kuroto Dan and his companions to continue the rest adventures. There, he, Luigi, and Milinda met Kudelia Aina Bernstein again after Kenzo and Atra were killed by Mikie Okamine. Professor Kiryu and the heroes continue their adventures. Suddenly, he and the heroes encountered Pierce, the remnant of Team Rocket. During the fight, he and his pals managed to drive and defeat archenemy just before the arrivals of the united forces of Lady Yuinshiel Asteria and Madame Vladilena Milizé. He and the heroes were about to fight them. The tables had turned. The remaining forces of Gjallarhorn had arrived to ambush Sento Kiryu and the heroes. During the fight, Sento was shocked that Touma Kamiyama and his fellow Kamen Riders had turned evil to join forces with their new master. During the battle, he was able to pilot Xenorex for the first time after exiting Gundam Barbatos. He was able to defeat the Time Jackers for good.

After the deaths of Leo Conrad and Sally Land, he and the heroes must continue their journey. During the restful sleep, Sento was having a nightmare in his past childhood that the culprit] killed his grandfather and the DigiDestined as well. Woken himself up, he suffers a mental nightmare. He was cared by his friends, including Soichi Isurugi and Misora Isurugi. Started with the therapy discussion, Sento wanted to share burdens with Kuroto Dan and his companions; but he refused.

Powers and Abilities
Tactical Genius - Professor Kiryu has a genius-level of strategy and tactics, able to see through all angles/information/patterns/perceptions of any subject, conflict, condition, environment, etc. This gives them the ability to come up with plans/actions that will guarantee victory and make the wisest/optimal strategic and tactical decisions for the short and long term at exactly the right time. They can consider all effects and outcomes, anticipate all obstacles, seize all opportunities, adjust effectively to any situation, manipulate all circumstances to their optimal benefits, and making the most out of anything around him to achieve their goals.

Black Hole Manipulation - As Cross-Z Build, Sento Kiryu can create, shape and manipulate black holes, a region of space time where gravity prevents anything, including light, from escaping.

Gravity Manipulation - As Cross-Z Build, Sento Kiryu can create, shape, and manipulate gravity, a natural phenomenon by which all matter is brought together, toward one another. If they exist, the user may be able to manipulate gravitons, hypothetical elementary particles that mediate the force of gravitation. He can bend gravity to make the environment very “heavy” or “light”, cause objects to “fall” toward another object instead of the earth (“nexus inducing”), flatten objects, and generate miniature black holes to compress objects into oblivion. They can repel and attract matter and energy regardless of its mass or move objects in a manner similar to telekinesis.

Trivia

 * Sento Kiryu shares the initials "S.K." with the genius Seto Kaiba, a character from the Yu-Gi-Oh! franchise.
 * As Cross-Z Build, he can perform the newest finisher called the 'Big Bang Black Hole Gravity Control'.