AtWrestle Princess III on October 9, 2022, Watanabe defeated Alex Windsor to win the International Princess Championship.[7] She made her first title defense at The Mountain Top 2022 on October 29, defeating Moka Miyamoto in the main event.[8]AtTokyo Joshi Pro '23 on January 4, 2023, Watanabe defeated Trish Adora to make her second successful title defense.[9]AtTJPW City Circuit Winter ~ Nagoya Performance on February 18, she defeated Janai Kai to make her third successful title defense.[10] On March 18, at Grand Princess '23, Watanabe dropped the title to Rika Tatsumi, ending her reign at 160 days.[11]
On March 31, 2024, at Grand Princess '24, Watanabe defeated Miyu Yamashita to win the Princess of Princess Championship for the first time.[12] She made her first successful title defense against Shoko Nakajima at Yes! Wonderland '24 on May 6.[13] On June 9, at TJPW Prism '24, she defeated VertVixen to make her second successful title defense.[14] On July 20, at Summer Sun Princess '24, Watanabe defeated Rika Tatsumi to secure her third title defense.[15]
Due to TJPW being under the same CyberFight flagship, Watanabe has competed in various of DDT Pro Wrestling's events. She made her first appearance at DDT Tokyo Idol Festival 2018 on August 3, where she teamed up with her Up Up Girls stablemates Hikari Noa, Pinano Pipipipi, Raku, and Danshoku Dino to defeat Hyper Misao, Makoto Oishi, Yuki Kamifuku, Akari Saho, Aya Kajishima, Mayu Yoshikawa and Sanshiro Takagi.[16] Watanabe also participated in some of DDT's signature events such as DDT Judgement, making her first appearance at the Judgement 2019: DDT 22nd Anniversary on February 17, where she teamed up with Hikari Noa and Natsumi Maki in a losing effort against Bakurestu Sisters (Nodoka Tenma, Yuki Aino) and Yuna Manase as a result of a six-woman tag team match.[17]AtDDT Street Pro Wrestling In Tokyo Idol Festival 2019 on August 2, Watanabe competed in another battle royal for the Ironman Heavymetalweight Championship won by Momomi Wagatsuma who dethroned the previous champion Yukio Sakaguchi. The match also involved other notable opponents such as Yukio Naya and other idols like Natsumi Misake and Rise Shiokawa.[18] Another signature event in which Watanabe competed was the DDT Ultimate Party, making her first appearance at the Ultimate Party 2019 edition from November 3, where she teamed up with Rika Tatsumi as "Hakuchuumu" and defeated Neo Biishiki-gun (Misao and Sakisama) to win the Princess Tag Team Championship.[19]
