On March 26th, 2014, SEIKA was announced as the official 6th member of UVERworld as a manipulator and the saxophone. However, this didn’t surprise most of the fans; SEIKA has been with UVERworld since SANGOKU ROAD days.
Before joining as the official member, SEIKA was simply just a DJ for UVERworld’s live. You will find him behind Akira’s location if you watch their live tours. The reason for SEIKA not being the 6th member in the first place and just being their DJ is unknown. But hopefully once interviews start, he will explain everything. (To be updated once we know.)
In the early days of UVERworld, SEIKA played a saxphone solo for the song: Yasashisa no Shizuku. He also records chorus together with the rest of the members. (This is shown in BUGRIGHT documentary in BUGRIGHT DVD.)
Starting in 2011 till now, DJ Seika began to be featured in UVERworld’s tracks, playing the saxophone. It started out during CORE PRIDE and became a major part in their album: ‘Life 6 Sense.’ Not only the music, also in their music videos. Even after the album, he continued to be featured in their songs (7th Trigger single), and now that he’s officially a member, we will be hearing more of him.