Chika Homura begins her high school career with a goal: to develop a "cute girl" persona. After quitting the volleyball team despite her all-star status, Chika decides to join her school's underrated Wind Instrument Club and play the flute, believing it to be the most delicate and feminine instrument. For the first time in nine years, Chika reunites with her childhood friend and total opposite, Haruta Kamijou. Unfortunately for Chika, Haruta is not fooled by her efforts to become more endearing. But this does not deter Chika, and she develops a crush on the band instructor, Shinjirou Kusakabe—but so does Haruta! However, Chika's high school life just won't go according to plan, as mysteries begin appearing around her and her friends. The club members must work together to solve the mysteries plaguing the school, all while trying to find more members to compete in musical competitions. [Written by MAL Rewrite]

The All-Star Tournament is a three-day event that allows e-sports participants from various professional clubs to display their skills, while also giving casual Glory players the chance to interact with pros in the flesh. Retired top-tier Glory player Ye Xiu agrees to watch the tournament together with Tang Rou and Chen Guo after the latter manages to get ahold of three tickets. It is a strange sensation for Ye Xiu, as unlike previous occasions, this time he attends the tournament as a spectator, not a participant. However, despite his attempts to keep a low profile, events in the All-Star Tournament may force the former Glory legend back into the limelight. [Written by MAL Rewrite]

Neku Sakuraba, a 15-year-old boy with a hobby for music and graffiti, wakes up in what seems to be the Shibuya shopping district of Tokyo, Japan. With no idea why he's there, he opens his hand to realize he is holding a strange black pin. After flipping it with his hand, the thoughts of the people surrounding him begins to flow into his head at once. Surprised, Neku discovers he is able to read the minds of others and assumes it has something to do with the black pin he is holding. A cell phone starts to ring in his pocket, and he can't tell whether it is his or not. A text message appears: "Reach 104. You have 60 minutes. Fail, and face erasure. -The Reapers." After discovering he can't delete the message, a timer of 60 minutes imprints onto his right hand. Neku is in Shibuya to play the "Reapers' Game," which spans a total of seven days. All Players of the Reapers' Game have a black pin with a skull embedded on it. (Source: Wikipedia, edited)

After years of fruitless war between the four realms of Gamindustri (Planeptune, Lastation, Lowee and Leanbox) over Share energy, the source of their strength based on how much their people have faith in their goddesses, the four CPUs that rule over them have finally signed a friendship treaty. The treaty bans any attempt at claiming Share energy through military force, in hopes of bringing peace and prosperity to their worlds. Yet, a month after the treaty, Neptune, the CPU Goddess of Planeptune, spends her time goofing off and playing games rather than doing her job, leaving her land's Shares plummeting. Choujigen Game Neptune The Animation follows Neptune and her friends' attempts at raising Shares, while dealing with an external threat that could spell the end of both the Goddesses and Gamindustri itself...