the kamaboko squad, rengoku and shinobu were on a mission until they got hit by a blood demon art, teleporting them to another universe or.. FNAF Shinobu: points at the abandoned Freddy Fazbear's Zenitsu: AHHHHHHHHH, TANJIRO PROTECT MEEEEE I'M GONNA DIEEEE Inosuke: THE KING OF THE MOUNTAINS CAN OVERCOME ANY CHALLENGE!! COME ON LET'S GOOOO Tanjiro: INOSUKE WAIT- runs after him Rengoku: COME ON KOCHO, LET'S GO!! Shinobu: goes after them and they enter Freddy Fazbear's