[9][10] On December 6, 2016, Watanabe received her first title match where she teamed with Io Shirai and Mayu Iwatani to challenge for the vacant Artist of Stardom Championship, which was won by Hyper Destroyers (Evie, Hiroyo Matsumoto and Kellie Skater) in a three-way tag team match, which also involved Oedo Tai (Act Yasukawa, Kris Wolf and Kyoko Kimura).

[17] On February 18, 2018, Watanabe challenged the leader of Queen's Quest Shirai for the Wonder of Stardom Championship in the main event at the Korakuen Hall, but was unsuccessful.

[24] On May 16, Watanabe lost the Wonder of Stardom Championship to Arisa Hoshiki, ending her reign at 358 days, and setting a record with most successful title defenses, at 13.

[25] On November 23, Watanabe, along with AZM and Hayashishita, won the Artist of Stardom Championship after they defeated Andras Miyagi, Kagetsu and Natsu Sumire.

[26] On February 8, AZM, Hayashishita and Watanabe lost the Artist of Stardom Championship to Donna Del Mondo (Giulia, Maika and Syuri).

With the match coming down to the wire and Queen's Quest holding a 2 to 1 advantage over Starlight Kid a shocking moment occurred when Watanabe betrayed her faction and hit her long-time tag team partner AZM over the head with a chair, handing the win to Oedo Tai and anointing herself the “Black Peach” of the group, turning heel in the process.

[39] At Stardom Nagoya Supreme Fight on January 29, 2022, Watanabe and Starlight Kid battled Queens Quest's Utami Hayashishita and AZM in a winning effort as a result of a grudge tag team match.

[44] At Stardom Fight in the Top on June 26, 2022, she alongside Kashima and Kid successfully defended the artist titles against God's Eye (Syuri, Ami Sourei and Mirai) and Donna Del Mondo (Giulia, Maika and Mai Sakurai).

[46] At Mid Summer Champions in Osaka on July 24, she alongside Kid and Kashima defended the artist titles again against Giulia, Maika and Himeka.

[49] On the second night of the Stardom Sapporo World Rendezvous on July 28, 2024, Tora announced the dissoultuion of Oedo Tai and the birth of the newly created unit of H.A.T.E.

On the first night of the Wrestle Grand Slam in MetLife Dome from September 4, Watanabe teamed up with Saya Kamitani to defeat with Lady C and Maika.

On the second night from September 5, the two fell short to Giulia and Syuri[51] At Forbidden Door on June 30, Watanabe and Kris Statlander lost to Willow Nightingale and Tam Nakano on the Zero Hour show.

[53][54] On January 5, 2025 at the co-promoted show Wrestle Dynasty, Watanabe represented Stardom and defeated ROH's Athena, CMLL's Persephone, and AEW's Willow Nightingale to win the International Women’s Cup, earning a title shot in either promotion.