Quruli

Mr. Sato was suffering from an epidemic, so the four members were working extremely hard. I could really feel Mr. Kishida's professionalism and his desire to entertain the audience. The way they pretended Mr. Sato was there really lightened the mood. Mr. Kishida played bass, and then played drums, letting Mr. Ishiwaka play bass. In a way, it was a very rare experience. I was relieved that Mr. Sato later recovered. As always, the large number of attendees made it feel like great value.

Source: Wikipedia