The descendant of the Kaslana family living in another world are destined to be lover with Raiden Mei in his own world, but it seems that this relationship is facing a major crisis?
Character introduction[]
Kevin, code-named "K", is the first male character to be introduced into the game as a boss and is Kiana Kaslana's male counterpart in an alternative universe. He is the Schicksal's strongest weapon, with the blood of the Kaslana family, acquired powerful abilities, but the corresponding lack of emotion. Until the age of 10, Siegfried Kaslana was appointed his guardian and gave him the name Kevin.
With the symbolic white hair of the Kaslana family, he looks handsome but is quite woody in terms of affection. The pedigree of his Kaslana family gave him the power to manipulate ice. This overwhelming power can easily destroy the Armored Bunny and able to suppress Mei's Herrscher power.
Houkai Gakuen 2 mainline[]
This character only appears in Retrospective
Otherworld (Original)[]
The story includes Kevin Light Novel.
Five years after Siegfried adopted Kevin, he was assigned to monitor the beauty of the eldest lady and the third Herrscher of the ME company. Faced with the question of what Kevin is "protection", Siegfried gave Kevin some advice on the "meaning of protection" and conducted a short period of unreliable pick-up training.
In the process of monitoring Mei, her father, Raiden Ryoma, was arrested because of an economic case. She fell into despair and tried to commit suicide, but she was stopped by Kevin, who was monitoring her, and she fell in love with Kevin.
Soon after, the third Houkai War broke out, and Kevin was ordered to kill Mei. Kevin struggled with whether his actions were the only answer, so with his different choices, traveled in countless worlds, and he continued to make trial and error, but at the end of each world, he still killed Mei.
In a certain world, at the beginning of the third Houkai, Kevin met Kiana Kaslana who had traveled through parallel worlds. Although Kiana hadn't noticed it, Kevin had already understood Kiana's origin. Under the leadership of Kevin, Kiana met Mei and Bronya again. However, Mei and Bronya seemed to have lost their memories, and forgot the bits and pieces they had spent with Kiana, and even changed back to the state they had when they met and attacked her. While Kiana was preparing to fight back, Kevin defeated Mei with overwhelming strength. Mei prepared herself to commit suicide but was stopped by Kevin, and the three escaped from Senba Academy together.
The three were attacked by Bronya Zaychik while passing by ME, but Bronya was easily defeated by Kevin. But when Kevin tried to kill Bronya, he was stopped by Mei, and Kiana took this opportunity to release Cocolia from Bronya's control.
When the four of them arrived at Homu Paradise, Cocolia controlled Bronya again and attacked Mei, but Kevin didn't keep her hands. Bronya was killed under Kevin's attack, and Mei was hit by a huge blow again. Under the Houkai control, facing the out of control Raiden Mei again, Kevin's surprising confession to her in the crisis finally revealed the truth of the world in Kevin's mouth. Kevin defeated Kiana who tried to stop him and sent Kiana back to the original world.
Weekly Boss[]
Kevin teleports to any of the four platforms across the stage depending on the position of the player. His first basic attack will begin with a projectile bullet, that would speed up if when fired consecutively in the same position.
Intermission State[]

Intermission State
Kevin will enter an intermission state when his first row of HP bar is depleted. He will teleport into the middle and summon 4 crystals on each platform that will only receive a set amount of damage before breaking. Destroying a crystal will resume the battle with kevin, and will enable him an additional type of attack dependent on the choice of crystal. Kevin in this state is invulnerable to any damage, and will slowly deal damage per second, and will cause beatback if you touch him, also dealing damage.
Left Crystal[]
Destroying the left crystal, Kevin begins dealing a new projectile spead attack that can travel across the stage. Getting hit by the ice shards will inflict the player with a debuff that will reduce or nullify all healing. Unlike the other Crystals, destroying this one does not spawn a clone.
Right Crystal[]
Destroying the right crystal, Kevin will spawn a clone that will mimic the original. He can also throw out a spear that will nullify all player healing effects, reduce ammution, and life steal the players HP, enabling him to gain HP back. His first basic attack will now deal more damange and his Clones are able to throw spears.
Top Crystal[]
Destroying the Top Crystal, Kevin will spawn a clone that will mimic the original. Kevin can now also create multiple ground ice traps that can destroy deploys, and slow the player when hit.
Bottom Crystal[]
Destroying the Bottom Crystal, Kevin will spawn a clone that will mimic the original. Kevin can summon ice shards to fall upon the player at any given location in the stage.