It's the near future. The newly established girls' private school Goryoukan Academy has another face. This school has a special unit, Fifth force, who is assembled and selected from the school's student body in order to fight an enemy called O'bli. This is a story about love, courage and friendship about the girls called Strikers.

Taka (technically Tamahome) and Miaka are now happily married and only six months before their new family would be born, but an obsessed girl named Mayo would do anything to make Taka hers. She enters the world of the Four Gods, determined to win Taka's heart and be the new priestess.

Thirteen years after achieving major success with the Indiana Hornets, Gorou Honda's career as a pitcher ended abruptly after sustaining a horrible injury. Inspired by his father, who continued playing baseball despite major setbacks, Gorou plans to restart his baseball career and play in a new position. However, his strong dedication to train has puzzled his family, especially his young daughter Izumi, who is frustrated with the absence of her father from her lives. Faced by another tough obstacle, Gorou once again decides to prove his resolve through his beloved sport. [Written by MAL Rewrite]

Akari Akaza, Chinatsu Yoshikawa, Kyouko Toshinou, and Yui Funami return to commemorate an exciting occasion! Despite their initial bizarre celebration ideas, they decide to hold a party at their Amusement Club room. With the help of friends from the Student Council, they start preparing for the big day—with a surprise planned for a special someone. Join the girls as they work together to create an enjoyable and memorable party, all the while interacting with one another with their cute and unique quirks. [Written by MAL Rewrite]