This contains the side stories during the time the Mankai Company was rebuilt.

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

The bloodlines of "Oni" and "Momotaro" have been passed down among certain humans for generations. Long ago, the Oni, aware of their own ferocity, lived in seclusion. However, their peace was shattered by an invasion led by Momotaro. Over thousands of years, these two factions formed the "Momotaro Agency" and the "Oni Agency," respectively, and have been locked in conflict ever since. The protagonist, Shiki Ichinose, suddenly learns of his Oni lineage following an unexpected attack by Momotaro. This revelation sets Shiki on a path to discover the destiny that lies within his blood — a meeting with the Oni dwelling within him.

In Nerima, Tokyo, the Oni and Momotaro clash once again.

A story of a beautiful world that no one sees.

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.

Four Seasons LIVE brings the MANKAI Company together again for the first time in about four years! This special event will feature live performances of songs that have colored past productions, along with a unique "mixed performance" where troupe members from different units take the stage together. Look forward to a special stage overflowing with blooming flowers!

Featuring the cast of First stage and Second stage, this is the first concert of the New Prince of Tennis live action musical adaption.

Featuring the cast of 11th generation Seigaku, along with Fudomine, St. Rudolph, Yamabuki, Hyotei, Rokkaku and Rikkai, this is the first concert of the 4th season of Musical The Prince of Tennis.