Kohei Murakami As Masato
Masato Kusaka (草加 雅人 Kusaka Masato?) is a member of Ryusei School
who was apparently absent from the reunion, but signed the autograph
card. He is the only Ryuseiji who was capable of wearing the Kaixa Gear
without disintegrating afterwards and as such is the Gear's primary
wearer.He had a great deal more Orphnoch DNA implanted into him, allowing him to use the Kaixa gear safely for a time, but near the end of the series, it began to wear off, and using the Kaixa gear was becoming increasingly harmful to him. In the end, his neck was snapped by Yuji Kiba, who claimed the Kaixa gear as his own towards the end of the series.
As children, Mari often saved him from bullies and as a result he has fallen in love with her and is willing to go to elaborate lengths to eliminate any obstacles between him and her. Jealous of Takumi's closeness with Mari and seeing him as an obstacle, he will stop at nothing to damage Takumi's standing, and as a skilled manipulator, he often secretly plays Takumi and Kiba against each other so Takumi will have no allies. However, he passionately despises the Orphnochs, regardless of whether they "have souls" or not and swears to destroy them all. His hatred was driven by the events that took place at the Ryusei School reunion and he continually wipes his hands to remove the imagined blood he remembers from that night.
Masato Kusaka is the only one to have worn all three of the Kamen Rider belts (Faiz, Kaixa and Delta). He wore the Faiz Gear to trick Yuji Kiba. He wore the Delta Gear to battle the Beetle Orphnochs (Rhinoceros and Stag).
Kamen Rider Kaixa Debut:
(2003)
| Gender: | Male |
| Series: | Kamen Rider 555 |
| Motif: | Hornet,Chi Symbol |
| Rider Type: | Anti-Hero |
| Homeworld: | Earth |
| First Appearance: | Eps 12:Meteor School |
| Last Appearance: | Eps 48:Masato, Dying A Glorious Death |
| Number of Episode Appearances: | 36 (555) 1 (Decade) 1 (Movie) |
| Actor: | Kohei Murakami |
- Height: 189cm
- Weight: 95kg
- Punching power: 3t
- Kicking power: 7t
- Maximum jump height: 30m
- Maximum speed: 100m/6.3 seconds
Accessories
Kaixa Driver
Kaixa Phone
- 9-1-3 Enter: This code allows for the user to become Kaixa until he is a normal human, having fatal consequences.
- 1-0-3 Enter: This code allows for Kaixa to convert the Kaixa Phone is turned into Phone Blaster and fire a continuous beam of Photon Energy for about 3 seconds. It has 12 shots until it must be recharged.
- 1-0-6 Enter: This code allows for Kaixa to convert the Kaixa Phone is turned into Phone Blaster and fire 3 round bursts of Photon Energy. It has 4 bursts until it must be recharged.
- 2-7-9 Enter: This code allows for Kaixa to give the Phone Blaster a five second recharge.
- 3-8-2-1 Enter: This code allows for Kaixa to summon the Jet Sliger. Was never used in the show.
- Enter: This code allows for Kaixa to execute a "EXCEED
CHARGE" attack depending on the item he inserted the Mission Memory
into, sending a burst of power from the Kaixa Driver, along the Photon
Streams, to the weapon in question giving it a tremendous power boost,
and in some cases extra abilities.
Designated "SB-913C", this digital camera-like device was developed by Smart Brain as a mean to protect the Orphnoch King. The Kaixa Shot was designed for specific compatibility with Kaixa Mission Memory, transforming into an energy powered knuckle-duster that Kaixa can use his Grand Impact punch attack.
Kaixa Shot
Designated "SB-913B2", these binoculars were developed by Smart Brain as a mean to protect the Orphnoch King. The Kaixa Pointer was designed for specific compatibility with Kaixa Mission Memory, attached to the Power Anklet for Kaixa execute his Gold Smash attack, producing a energy drill around his foot while executing the deathblow.
Kaixa Pointer
Designated "SB-913X", the Blaygun is a special weapon that is both a pistol, a dagger and a lightsaber. By default, it is in the shape of the Greek letter Chi "Χ", or an upside down "4". By inserting the Kaixa Mission Memory, a blade made of Sol Glass is extended from the bottom of the gun grip. This form may still utilize the pistol part of the weapon if the blade is held by the gun grip, though the weapon can be reversed to be used as a standard 2-handed sword. It can be used in the Xeno Clash attack, where a constricting energy net is fired from its gun section, while simultaneously over-charging the sword section and temporarily increasing Kaixa's speed for a dashing strike. It is important to notice that the blade of the Kaixa Blaygun does not cause damage by itself, but due to the energy that it discharges once in contact with the target.
Kaixa Blaygun
The SB-913V Side Basshar (サイドバッシャー Saido Basshā?) is Kaixa's support mecha, and can transform into either a sidecar-type motorcycle (Vehicle Mode) or a bipedal walker-type battle Mech (Battle Mode). Neither form offers any significant protection to the driver.

- Height: 1170mm
- Length: 2370mm
- Width: 1960mm
- Mph: 360km
Though surprisingly fast and mobile for a machine of its size and shape (it is seen jumping up onto a motorway overpass and leaping over an incoming missile barrage), the Side Basher lacks maneuverability in Battle Mode. It has difficulty tracking more agile targets, and can only attack targets that are in front of it; weaknesses that were exploited by knowledgeable opponents (such as Takumi Inui).
- Height: 2450mm
- Length: 2370mm
- Width: 1650mm
- Weight: 425kg
- Mph: 120km
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