Yukari Yakumo is the gorgeous student council president. She watches over Gensokyo as one of its creators. Her position is, of course, the same for the Hakurei Shrine Academy that she brought into existence. Yukari Yakumo, President of the Yakumo Student Council. She will find the optimal way to manage Gensokyo.

Ran Yakumo is the elegant vice president. She possesses a nine-tailed fox as one of Yukari's shikigami. Her nine tails are just as warm and fluffy in the Hakurei Shrine Academy as they are in Gensokyo. Ran Yakumo, Vice President of the Yakumo Student Council. Her routine is to eat fried tofu behind the President's back.

Chen is a calm and composed secretary. She possesses a bake-neko as the shikigami of Ran, who is also a shikigami. She is Yukari's most helpful assistant's most helpful assistant and is one of the hardest workers within the Hakurei Shrine Academy. Chen, Secretary of the Yakumo Student Council. Sometimes, she falls over chasing her own tail while transporting materials.

Yukari and Ran happily discussed their prospects for the future. The simulated world can even be reset, so the possibilities are endless. For these two, this academy is the perfect toy and the perfect place to experiment. But Chen watched over them with a rigid smile plastered on her face as she imagined the disaster and trouble that would befall her when things inevitably went wrong...

Yukari's excited brainstorming for a way to manage Gensokyo was cut short when she was pulled into the simulated world she created. Her body was stolen, and she was reduced to a pitiful form... Who caused this? And what were they after? The journal that posed these questions was none other than Yukari Yakumo. She laughed and decided that finding the answers to these questions would also be fun.