On 18 December 2020 BiS closed out a year upended by the pandemic with The DANGER OF MiXiNG BiS, a sold-out one-man show at LINE CUBE SHIBUYA in Tokyo. It was the finale of a national run that had already taken the group through Aichi, Sapporo, Kyoto, Sendai and Fukuoka. The third-generation quartet — Toggy, Ito Musensiteebu, Chantmonkee and Neo Trees — perform on a mock-townhouse set whose brick facade spells out SEX, FUCK, PRETTY and BiTCH, tearing through twenty-one songs from "STUPiD" to "TOUCH ME" before returning for an encore that ends on "CURTAiN CALL". Seated at half capacity and forbidden to cheer, the audience answers with raised hands alone; everyone locked out by the instant sell-out watched a one-night-only pay-per-view stream, and the show closes with a Christmas card to the people on the other side of it.
| Actor | Role |
|---|---|
| TToggySelf | Self |
| IIto MusensiteebuSelf | Self |
| CChantmonkeeSelf | Self |
| NNeo TreesSelf | Self |