In Tokyo's Saitama Super Arena, RIZIN warriors clash on December 31 for 師走の超強者祭り. Featherweight contender Shaydullaev meets Mikuru Asakura in a title fight. Bantamweight rivals Naoki Inoue and Danny Sabatello battle. Atomweight stars Seika Izawa and RENA fight for supremacy. Lightweight champion Roberto "Satoshi" Souza defends against Shunta Nomura.