|Date of Birth:||January 15|
|Season:||Euro Sentai Beatranger|
|Number of Episode|
"Igniting the blaze of power! Red Beat!"
Kai Sonomura (園村 海 Sonomura Kai) is the red Beatranger, known as Red Beat, and a communications technician. He wields power gained from Fire Resonance.
Formation of Beatranger
Kai was the technician monitoring the camera feeds of the team involved in the discovery incident, including Kanae's, and had seen the resonance device and Meloquarz. Because of that, he was invited to join the newly-forming Beatranger team. Having been a communications technician his entire career, he was somewhat apprehensive about suddenly being moved into a field team. It was determined that he had undergone the proper training to be a field operative, however, and despite his apprehension, Kai accepted. He was matched up with Fire Resonance, becoming Red Beat. He felt uneasy using Fire Resonance, but figured it was just something he needed to get used to.
Kai is a lighthearted and very intelligent person. He worries a lot about those around him and has an immense desire to keep them safe. His stress response is flight rather than fight, which goes hand-in-hand with one of his duties as a communications technician, which is to get his team out of dangerous situations fast. He is somewhat okay under pressure, and is mostly able to keep himself going in a bad situation. Kai identifies as aromantic.
As Red Beat, Kai has enhanced strength, a protective suit, and resistance to most hostile resonance, as well as the ability to burn through objects like a cutting torch. Unlike the other Beatrangers, however, Kai cannot summon a personal weapon. This is due to problems with Fire Resonance.