The ultimate showdown is here! A decisive battle titled "Who is the champion?" is about to ignite. The inaugural SSS Heavyweight Champion, Chia Kawanishi, has vacated her title, leaving the championship vacant. To determine the new champion, the third SSSGP tournament winner was granted the interim title—and that victor is Nakai Chiharu. With her SSSGP victory, she now stands equal to Hidaka, having claimed the SSSGP Heavyweight belt that Hidaka once failed to win. Now asserting her superiority, Nakai has personally named Hidaka as her challenger. Whether this is revenge or a bid to solidify her reign as the second official SSS Heavyweight Champion, driven by the gratitude she feels toward the SSS mat that helped her grow, Nakai declares she will face this title match not as a mere fighter, but as "SSS's Nakai Chiharu." What will be the outcome? Will it be a nightmare reborn? Will she forever be labeled a woman unworthy of the belt? Or will glory finally be hers? This historic-level match cannot be missed!
Additionally, a special match has been announced: "Maiha Maya vs. Goto Risa"! After the B-1 Tournament final was declared invalid, the B-1 Championship became vacant. Due to scheduling conflicts among other fighters, SSS has selected these two competitors for a separate bout. Goto Risa, a four-time One-Day Tournament winner, has pleaded with C. Ronald for a title shot. A native SSS fighter, Goto refuses to acknowledge Nakai and sees her as a rival—now seizing the chance to get back at Nakai by claiming the B-1 belt that Nakai never obtained. On the other side, Maiha Maya, a longer-tenured SSS veteran, is no undefeated elite like Goto. Her debut was plagued by losses and hardship, but through sheer determination, she honed her skills and steadily evolved, ultimately winning One-Day Tournament 5. In Pro Wrestling DCF2, she achieved a major upset by defeating WUW ace Rinna Fukada, proving herself a rising force. Is she facing a "prodigy with an unblemished record," or the "weed-like fighter who never stops evolving"? Both are One-Day Tournament champions, carrying the pride of SSS—so who will earn the right to challenge for the B-1 title?!