Bish The sequel to BIS, BiSH is the product of original BiS manager Watanabe Junnosuke and producer Matsukuma Kenta. The group was formed at the beginning of 2015 and have released one single and two albums. The group was originally founded with 5, but Yukako Love Deluxe quit the group early in its existence due to "overthinking." Her vocals remain on the album recording of "Spark," although the remaining members sing her lines in duets during lives. Two new members were added in the beginning of August. They were described as sub-members pending full membership until they reached 5000 followers on Twitter, which they did. As was the case with BiS, the members contribute heavily to their lyrics and are responsible for their own choreography.