Hiroyo Matsumoto
On January 21, 2012, Zero1 presented Yuhi to the public and announced she was almost ready to make her professional wrestling debut. It was announced that she would be performing under her real given name Yuhi, which is Japanese for "sunset"; by coincidence Hidaka had previously run a women's wrestling promotion named Pro Wrestling Sun. On April 14, Zero1 revealed that the promotion had recruited World Wonder Ring Stardom representative and "Tokyo Sports"' 2011 "joshi" wrestler of the year, Yuzuki Aikawa, to serve as Yuhi's debut opponent. Ten days later, Yuhi made her debut at a Pro Wrestling Zero1 event in Tokyo's Korakuen Hall, losing to Aikawa. On April 28, Yuhi was defeated by freelancer Hiroyo Matsumoto at a small outdoor event in her hometown of Asaka, Saitama. On May 3, Yuhi made her first appearance outside of Zero1, when she made debut for women's wrestling promotion World Wonder Ring Stardom, losing to Io Shirai in a singles match. Yuhi and Hiroyo Matsumoto had a rematch at a larger Zero1 event in Korakuen Hall on May 16, where Matsumoto once again was victorious. On May 20, Yuhi returned to Stardom, wrestling Arisa Hoshiki to a fifteen-minute time limit draw in a main event "draft match". After the match, all of Stardom's stables; Io Shirai's Planet, Nanae Takahashi's Nanae Gundan, Natsuki☆Taiyo's Kawasaki Katsushika Saikyou Densetsu Plus One, and Yuzuki Aikawa's Zenryoku Joshi, entered the ring in an attempt to convince Yuhi to join them. Eventually, Yuhi chose to join Zenryoku Joshi, which also included Kairi Hojo, Saki Kashima and Yoko Bito, and was two weeks later also joined by old associate Hiroyo Matsumoto. Due to the complete lack of other female wrestlers in Zero1, this effectively made Stardom Yuhi's new home promotion, though she was still billed as a Zero1 Norainu Dojo representative.