On the 9th, Seibu Lions announced that they will be holding a collaboration event with the popular baseball anime "Ace of Diamond act II -Second Season-" at the game against Lotte to be held at Belluna Dome on Sunday, April 12th.

On the day, the voice actors of the main characters of the series, Osaka Ryota (role of Sawamura Eijun), Shimazaki Nobunaga (role of Furuya Satoru), and Shimono Hiro (role of Kawakami Kenji), will be in attendance and will appear at the pre-game talk show, ceremonial pitch, and between inning events during the game.

To coincide with the event, they are also creating cute illustrations of anime characters wearing The Lions jersey and some of The Lions players. On the day, merchandise featuring these illustrations will be on sale, and photo spots will also be set up inside the stadium. Details of the collaboration event and merchandise will be announced on the official website as soon as they are decided.