Mio Shirai
Stardom continued holding shows at Shin-Kiba 1st Ring each month before eventually holding their first ever show at Korakuen Hall on July 24.At the event, 9-year-old Haruka, who had debuted on the first show, faced DDT Pro-Wrestling star Kenny Omega in a match that became a viral hit on YouTube, reaching over 1 million views. A number of champions were crowned at the event as well. Aikawa defeated Yoshiko to become the first-ever Wonder of Stardom Champion and Natsuki Taiyo defeated JWP wrestler Leon to win the High Speed Championship. The inaugural World of Stardom Champion was crowned in a four-person tournament, with Takahashi defeating Bito in the final. Another notable development in Stardom's Korakuen Hall debut was freelancer Io Shirai, who had been appearing in various other joshi puroresu promotions alongside her sister, Mio Shirai, and Kana as the stable Triple Tails. Shirai made a surprise appearance at the end of Stardom X Stardom, requesting to join the company.