Hiroyo Matsumoto
On December 9, Yuhi entered the second annual Rookie of Stardom tournament. After defeating Zenryoku Joshi stablemate Kairi Hojo in her first round match, she won the tournament by defeating Act Yasukawa in the finals. In a post-match victory speech, Yuhi made a challenge for the Goddess of Stardom Championship on December 24, but as Yuzuki Aikawa was already booked for the event, she chose Hiroyo Matsumoto, whom she referred to as her "older sister" and Zero1 training partner, as her new partner. On December 24, Yuhi and Matsumoto were defeated in their title match by the defending champions, Natsuki☆Taiyo and Yoshiko. Yuhi wrestled her first match of 2013 back in Zero1 on January 1, losing to Sendai Girls' Pro Wrestling representative Meiko Satomura in a singles match. After Yuzuki Aikawa had announced her upcoming retirement from professional wrestling, she disbanded Zenryoku Joshi on January 14, 2013. In her final match as a representative of the stable, Yuhi was defeated by Hailey Hatred in a singles match. On January 25, Yuhi made her debut under a mask as "Sunset☆JK", losing to "Masked Hiroyon", the masked Hiroyo Matsumoto, at a Zero1 event. On March 31, Yuhi teamed with Mayu Iwatani in a tag team match, where they were defeated by Kawasaki Katsushika Saikyou Densetsu representatives Natsuki☆Taiyo and Yoshiko. After the match, Yuhi made a challenge for Taiyo's High Speed Championship, which was promptly accepted by the champion. On April 14, Yuhi earner a big win by pinning Yuzuki Aikawa at the end of a seventeen-woman gauntlet match. The following day, Yuhi wrestled her one-year anniversary match back in Zero1, where she was defeated by veteran wrestler Manami Toyota. On April 29 at "Ryōgoku Cinderella", Yuhi unsuccessfully challenged Natsuki☆Taiyo for the High Speed Championship.