SAKANAQUARIUM ADAPT ONLINE is a live concert experience from Japanese rock band sakanaction, created specifically to showcase concepts and feelings they have had to cope with and embrace over the course of the pandemic. Past hit songs like アイデンティティ ("Identity"), 『バッハの旋律を夜に聴いたせいです。』("Bach no Senritsu o Yoru ni Kiita Sei Desu"), and 新宝島 ("Shin Takarajima") are performed, along with new songs such as 月の椀 ("Tsuki no Wan"), プラトー ("Plateau"), and ショック！("SHOCK!").

Young rocker Takuro meets pop star Saki at one of his band's shows. When she asks him to write a song for her, their views on life and music collide.

A bumpy team that suddenly formed challenges the Rocket League national tournament.

Izumi is a sophomore university student when she hears from her former high school teacher and mentor Takashi. They were both involved in the school drama club. She liked him. He liked her. Takashi asks Izumi to return to the school and assist with a performance. Will the feelings be rekindled?

Shiori has just moved to a new apartment. One evening, she hears a mysterious voice that claims to be "from the future" asking her to trail Susumu Hirano, who lives next door. Shiori in an attempt to solver the mystery began to investigating more and more about Hirano until she gets attracted to him.

Kota runs into his old friend Chika on the anniversary of their friend's death. They plan to meet again in a year, but their feelings are complicated.

Yuki has decided to quit pursuing music as a career. One day he meets composer Michiko and her son Kengo who has a pervasive developmental disorder. Yuki comes to be Kengo's babysitter due to strong pressure from his boss at work which leads to a deepening relationship with Michiko and her son.

The drama portrays the lives of two young men, Kaneko Ryū (played by Hōshi Ishida) and Sudō Kazutora (played by Yūtarō Furutachi). Ryū is a man who stakes his life on being a yakuza, while Kazutora despises the yakuza and seeks to surpass his father.