The video game GO!GO!575 was initially released in Japan, combining rhythm gameplay with vocaloid music featuring Hatsune Miku and her friends.
The game world of GO!GO!575 is created, setting the stage for the adventures of Kasumi and her friends.
Kasumi officially becomes an aspiring idol, beginning her journey to fame through singing and rhythm battles.
Kasumi participates in her first rhythmic music battle, showcasing her skills in the main gameplay mode.
Kasumi forms an IDOL club with friends to support each other through music challenges and concerts.
Kasumi releases her first single within the game, gaining popularity and advancing the story.
The rival character Yuzu is introduced, providing new challenges and friendly competition for Kasumi.
Kasumi performs her first live concert event, an important milestone in her idol career.
Kasumi and her friends collaborate with other idol groups in a festival event to boost morale and unity.
Kasumi competes in the grand rhythm tournament with the highest stakes and strongest rivals yet.
Triumphing over her rivals, Kasumi's victory cements her status as a top idol in the GO!GO!575 world.
