MANKAI STAGE "A3!" ACT2! ～Spring 2023～ is the eleventh stage play adaptation of A3! and covers the Spring Troupe's fifth and sixth play stories.

Stage adaptation of the game Bungo to Alchemist.

After Four Seasons LIVE 2020, the series go to Act 2! The troupe will welcome the long-awaited new member, Guy, and tell the story of the new Winter Troupe's fourth performance.