Anpanman, his friends, and the cloud child Fuwari strive to save Cloud Country. In order for flowers and plants to be healthy, Cloud Country travels to distribute clouds that can make rain and rainbows to various towns and stars. A cloud baby born in Cloud Country runs across Baikinman and his friends. After meeting them, the baby gets the name Fuwari and quickly grows while developing a bond with Dokin-chan.

In order to take over her grandmother's Dagashi store, art student Kumi Honamanuma moved to Kyoto. She met Harami Mino, K Kusanagi, Mai Haisaka, and a dog who lives in the store, which supposed to be empty. Kumi ended up living with these girls, who claim that they are heroes reincarnated to contemporary period to chase after the demon king. Harami and others seem to live in a peaceful life with no missions to to do anymore, Ran, who was demon king in the past and appears to be an elementary school girl from failing to reincarnate, one day. The story begins with Ran requesting to collect demon king's fragments.

It tells the story of the top warriors Bu Jingyun and Nie Feng. In order to cope with a catastrophe that was about to sweep the entire world, they transformed into quantum states with the help of unknown seniors and mysterious extraterrestrial visitors, and their whereabouts are unknown. Three thousand years later, an asteroid hit the earth, turning the surface into a barbaric wasteland. Human beings trapped underground gradually discovered that there is a super power known as "pulse energy" in the human body. Bu Tianyun, an orphan from Dungeon 32, accidentally awakened Bu Jingyun who was sleeping in the meteorite. From then on, he discovered the "pulse energy" potential in his body, and together with Nie Feng's successor Nie Zifeng, embarked on the journey to become " The journey of training as a "pulse warrior" and fighting to protect the world.