Ryota Kohama is ONE OK ROCK's bassist. Ryota was Toru's classmate in high school. When Toru asked Ryota to join his band, Ryota had no idea how to play the bass. So he started from the basics.
Although he owns many basses, most of his collections are Warwick basses. He owns three Warwick Streamer LX4 and two Warwick Streamer LX5, as well as a custom LED. He really love this manufactures. Ryota prefers to play clean, but sometimes he add some distortion to his bassline, such like Deeper Deeper and Rock, Scissor and Paper. He painted his lovely amps with help of an street artist.