BYS (新生YouTuber研究会; Shinsei YouTuber Kenkyuukai; Brand-new YouTuber Society) is Pour Lui's YouTube channel. It frequently features other former members of BiS, as well as occasionally Pour Lui's family and other Japanese YouTubers. It can be viewed here.
In February 2019, a second BYS channel, BYS Music, for the purpose of uploading music videos, was launched. The latter channel has since been rebranded as PIGGS' official YouTube channel.
Since December 27th, 2019, the main channel has been inactive, and since March 9th, 2020, Pour Lui's vlog channel has been inactive.
Main Cast[]

- Pour Lui (All Episodes)
- First Summer Uika
- Hirano Nozomi
- Tentenko
- Coshoji Megumi
Former Cast[]
History[]
In early 2018, as she was preparing for her graduation from BiS, Pour Lui started tweeting about wanting to become a YouTuber once she ended her idol activities. On March 31st, three weeks after her graduation, she followed through with that idea, posting a video showing her being taped to the ceiling by other ex-BiS members First Summer Uika, Tentenko, Michibayashi Rio and Coshoji Megumi. Ever since, she continued to post videos multiple times per week, featuring more BiS members (including Michibayashi Rio who, while not part of the main cast, appeared in two videos).
The subjects of her videos usually involved Pour Lui and co. trying out typical YouTuber activities such as pranks, ASMR and Lets Plays. In some videos, the girls and Saki would also discuss their past careers in BiS. One such video, where Pour Lui revealed her BiS salary, made headlines on news sites such as Yahoo!
In October 2018, Kamiya Saki said in an interview that they had quit BYS to concentrate on GANG PARADE.
In late 2018, another former BiS member, Nakayama Yukiko made appearances in BYS with members of Kimi no Mawari. At around the same time, Pour Lui and BYS made headlines again after she released a video with another Youtuber, Inu mo Kuwanee yo, parodying BiSH's Promise the Star. Titled "Promise the Moon", the music video referenced several controversies surrounding her, Matsukuma Kenta and Watanabe Junnosuke such as the DiET or DiE scandal and mistreatment at the WACK auditions.
On February 21st, 2019, a second BYS channel was launched. Titled BYS Music, the secondary channel was to be used for publishing Pour Lui's solo music. The first video to be published was "Primally", a parody of BiS' Primal. A few months later, Pour Lui opened a third channel, focusing on personal vlogs which had previously been published on the main BYS channel. This suggested that future main channel BYS uploads would focus more on the Lui-Uika-Nozomi-Tentenko-Megumi grouping as opposed to Pour Lui on her own.