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

In Summer Troupe Live, the music that was shown at "Four Seasons LIVE 2020" and the new songs recorded in the album released on August 18, 2021 will be performed by the cast members.

In Spring Troupe Live, the music that was shown at "Four Seasons LIVE 2020" and the new songs recorded in the album released on June 16, 2021 will be performed by the cast members.

Two-disc Blu-ray of "A3!" -Spring 2019-" featuring footage of group Spring's solo stage, rehearsals, behind-the-scenes, and events.

Features the final day of "MANKAI STAGE "A3!"" Fuyugumi main stage. Comes with a bonus disc with backstage, promotional videos, and more.

Features the concert of "MANKAI STAGE "A3!" -AUTUMN 2020-". Disc 2 comes with bonus disc with behind-the-scenes, rehearsal diaries, and a Team Autumn music video in full length.

Exceeding more than 5.5 millions downloads, the good-looking-actor-producing game, "A3!" closed their theatrical play, "Mankai Stage "A3!" - Spring & Summer 2018 - with a huge success. Their new stage play "MANKAI STAGE "A3!" -AUTUMN&WINTER2019-" is now available on DVD.

DVD release of first stage play adaptation of handsome-actor-training-game "A3!". Disc 1: Final stage in Tokyo (Nov. 4, 2018). Disc 2: Bonus footage.

Hit stage play "MANKAI STAGE "A3!" first live performance, "MANKAI STAGE "A3!" Four Seasons LIVE 2020" performed at Sep. 20, 2020. Bonus disc comes with behind-the-scenes and MANKAI CAM.

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.