Only more bizarre, troublesome, and funny adventures await Sakura Kusakabe as he continues living with the angel sisters Dokuro and Zakuro Mitsukai. More angels, including the polite Sabato Mihashigo and the quirky Zansu, show up to join in on the crazy situations. More often than not, their antics lead to Dokuro and her trusty Excalibolg killing Sakura, turning him into a bloody pulp.
Sakura Kusakabe, a mere junior high student, has committed a horrible crime. Or, rather, he will commit a crime—20 years into the future. The crime in question? He will prevent all women from developing past the age of 12, with immortality as an unintended side effect. As a result, the angel Dokuro Mitsukai is sent from the future as an assassin, armed with with a magical spiked bat named Excalibolg. However, rather than kill him, Dokuro wants to take a different approach. She resolves to be a constant nuisance to Sakura, in an attempt to prevent him from focusing on anything long enough to create his criminal technology. With Dokuro going against orders, the angel Sabato is sent out to complete Dokuro's mission. Between the impulsive Dokuro—who often murders Sakura with her bat before reviving him with the magic words "Pipiru piru piru pipiru pi"—and the electric baton-wielding Sabato, Sakura’s life will never be peaceful again.
The elementary school student Rieko lives with her parents who are deaf and mute, and her younger sister. Rieko wishes to draw cartoons and comics that make people happy, and doodles comics of Bomberman and friends in her notebooks. An earthquake strikes during the night and ravages the city, leaving their neighbourhood a shambles. They travel to a shelter, but their parents' inability to hear and speak causes misunderstandings and conflict among the workers; Rieko helps resolve the situation while also keeping an eye on her younger sister. With support from volunteer worker Kyoko, an older girl from Tokyo, the community within the shelter begin to grow and understand one another. Rieko helps keep the younger ones amused with her drawings of Bomberman characters, including a comic of the heroes and villains putting their differences aside to help each other when the battle arena comes down on top of them.
