22nd century. A virus "Infoternum" has infected humans globally to the point where it has become uninhabitable even with hazard suits. A selection of humans have since been sent into space to take refuge in arks. Meanwhile, a group of robot staff lead by acting manager Yachiyo (also a robot) continues to keep Hotel Gingarou in Ginza...

Outspoken, energetic junior high "Esper" Mami Sakura one day discovers she has psychic powers when she ends up rescuing her prodigy classmate Takahata from being threatened by the school bullies. After discussing it with Kazuo Takahata, Takahata ends up believing he is the one with psychic powers. And so Mami goes on a journey of...

Ai Ohto with heterochromia (different coloured eyes) has shut herself away, skipping school after bullying lead to the death of her only friend. One night while sneaking out, she finds a dead firefly and buries it. To her surprise she finds it talking to her and is offered a free Wonder Egg. Thinking it was just a dream, Ai wakes up...