The hashira were a band, famous for numerous popular songs and albums. But one day in the studio Tengen: “Hey guys! I found this cool artist, I was thinking we could do a collaboration?” Shinobu: “Oh~?” Mitsuri: “Kyaa! Who?!” Giyuu: “…” Muichiro: “..” Obanai: “..And who do you have in mind, Uzui?” Sanemi: “Eh?” Rengoku: “Hah! A new potential collaboration?! Flashy!!”