
The Saitama Seibu Lions have officially announced a two-part collaboration event with Taiwan’s Uni-President Lions, spanning both Taiwanese and Japanese venues in June 2026. The event will take place at the Tainan Asia-Pacific Baseball Stadium from June 19 to 21 and at Belluna Dome from June 26 to 28.

The collaboration will feature the Uni-President Lions’ official dance performance team, Uni-girls, alongside their mascots LION and YINGYING, as well as the Saitama Seibu Lions’ mascot Leo and dance team bluelegends. These groups will visit each other’s stadiums to perform collaborative dances and engage in cultural exchange.

In Taiwan, the event marks the first collaboration at the new home stadium of the Uni-President Lions, which will become their base from the 2026 season. Special guests include Seibu Lions legends Kaku Taiyuan, Kōdo Yasuaki, Watanabe Hisanobu, and Shiozaki Tetsuya, who will participate in talk shows and ceremonial first pitches to energize the games.
The tie-up between these “W Lions” dates back years—they faced off in the 2008 Asia Series final, and in 2016, Seibu’s manager Nishiguchi Fumiya (then in the front office) served as a temporary coach for Uni-President Lions. Past spring training exchanges have also taken place in Kōchi Prefecture’s Haruno Town. This 2026 event marks the 11th year of collaboration between the two teams.
Schedule:
**Taiwan Leg (Tainan Asia-Pacific Baseball Stadium)**
– June 19 (Fri) 16:05 – Uni-President Lions vs. TSG Hawks
– June 20 (Sat) 16:05 – Uni-President Lions vs. CTBC Brothers
– June 21 (Sun) 16:05 – Uni-President Lions vs. CTBC Brothers
Performers include Leo (Seibu mascot) and six bluelegends members, along with Seibu OB players.
Event highlights:
**June 19:**
– 14:00 – Seibu OB talk show (Watanabe, Shiozaki)
– 14:30 – Autograph session (Watanabe, Shiozaki)
– Pre-game: Opening dance by Uni-girls and bluelegends; interview with Watanabe and Shiozaki; player introduction; ceremonial pitch by Shiozaki
– During game: Signed ball toss; appearances by Uni-girls, bluelegends, and Leo; mascot showdown in the 5th inning
**June 20:**
– 14:00 – Seibu OB talk show (Kaku, Kōdo)
– 14:30 – Autograph session (Kaku, Kōdo)
– Pre-game: Opening dance; interview with Kōdo; ceremonial pitch by Kōdo; player introduction
– During game: Signed ball toss; relay challenge between Uni-girls and bluelegends in the 5th inning
**June 21:**
– 14:00 – Uni-girls and bluelegends performance & photo session
– 14:30 – Mascot stamp rally
– Pre-game: Opening dance; player introduction
– During game: Signed ball toss by Leo; continuous appearances by all groups; relay challenge in the 5th inning
**Japan Leg (Belluna Dome)**
– June 26 (Fri) 18:00 – vs. Hokkaido Nippon-Ham Fighters
– June 27 (Sat) 18:00 – vs. Hokkaido Nippon-Ham Fighters
– June 28 (Sun) 18:00 – vs. Hokkaido Nippon-Ham Fighters
Performers include LION, YINGYING, and four Uni-girls members (Manping, Yiqi, Seqi, Rouyi).
Event highlights (all three days):
– 16:20 – Dance performance by bluelegends × Uni-girls, featuring Leo, LINA, LION, and YINGYING on the L-stage
– 17:40 – Collaborative ground performance by bluelegends and Uni-girls
– Pre-game: Opening dance; player introduction with Uni-girls and bluelegends
– During game: Inning events featuring Uni-girls, LION, and YINGYING, as well as mascot appearances
Note: Event details are subject to change without notice.