[11] Unagi debuted in World Wonder Ring Stardom on November 14, 2020, at the Korakuen New Landscape Event teaming up with Tam Nakano and Mina Shirakawa, as the newest member of Cosmic Angels, defeating Stars (Gokigen Death, Mayu Iwatani and Starlight Kid).

[12] She began her tenure with Stardom as a tag team wrestler, and worked against different stables such as Donna Del Mondo (Himeka, Maika and Natsupoi)[13] and Queen's Quest (Momo Watanabe and Saya Kamitani).

On December 16, at Road To Osaka Dream Cinderella, Cosmic Angels defeated Oedo Tai (Bea Priestley, Natsuko Tora and Saki Kashima), to win Unagi's first title of her career, the Artist of Stardom Championship.

[16] On March 3, 2021, at All Star Dream Cinderella, Unagi won a 24-person All-Star Rumble featuring wrestlers from the promotion's past, such as Chigusa Nagayo, Kyoko Inoue, Yoko Bito and Yuzuki Aikawa.

[19] In the Stardom 5 Star Grand Prix 2021 she fought in the Block B and scored a total of nine points after competing against Syuri, Saya Kamitani, Takumi Iroha, Konami, Utami Hayashishita, Tam Nakano, Maika, AZM and Ruaka.

[29] On the second night from March 27, she participated in a 18-women Cinderella Rumble match won by Mei Suruga and also involving various wrestlers from other promotions such as Tomoka Inaba, Aoi, Haruka Umesaki, Nanami, Yuna Mizumori and others from Stardom.

[37] At Mid Summer Champions in Nagoya on July 24, she teamed up again with Shirakawa and Shimizu, this time in a three-way match won by Prominence (Risa Sera, Hiragi Kurumi and Suzu Suzuki), and also involving Queen's Quest (Lady C, Hina and Miyu Amasaki).

[45] Unagi competed for Marvelous That's Women Pro Wrestling's vacant AAAW Single Championship in a tournament on December 4, 2022, also involving Tomoko Watanabe, Rin Kadokura, Mio Momono, Ai Houzan, Queen Aminata, Maria, Riko Kawahata, Chikayo Nagashima and Yuna Manase.

[46] She took part in the 2023 edition of Pro Wrestling Zero1's Fire Festival, becoming the first ever female competitor of the tournament and placing herself in the A block where she faced Takuya Sugawara, Junya Matsunaga, Mizuki Watase, Yuko Miyamoto and Masato Tanaka.