Magic is all Meg Raspberry has ever known. Being raised by Faust, the Eternal Witch, Meg wishes to become a witch as great as her master. However, her life crumbles on her 17th birthday when Faust delivers the worst news possible: Meg has one year left to live. Due to a congenital curse, after turning 18, she will age a thousand times faster than normal and then die in mere days. Faust tells Meg there is a way to cure her affliction: she needs to consume a seed of life. In order to create the seed, Meg must collect a thousand tears of joy within 12 months. Although she is distraught by the difficulty of the task at hand, Meg nonetheless embarks on the journey to prolong her life, meeting countless people with their own stories to tell.

The older boys are graduating school and recount their memories together. The next day everyone defends the graduation ceremony against Zundar and Dadacha's Second Button Monster but Yumoto struggles using his love power.

In the northern Kanto area in Japan, there is Binan City… At Binan High School, as per usual, the “Earth Defense Club (lol)” was a club that did nothing. The club members Kyoutarou Shuzenji, Ryouma Kirishima, Nanao Wakura, Taishi Manza, and Ichiro Dogou nonchalantly enjoyed tea while having pointless conversations that amount to nothing. All of them have now gathered at Kurotama Bath after school. When Ryouma pulls Kyoutarou Shuzenji by his arm out of water that he claims feels too good, together with his towel comes a pretty boy in strange clothing. These five boys are then dragged into a battle for the heir of the magical kingdom, Honila Land...

In the distant future, humans create a robot named MIRU capable of traveling through time, visiting various eras, places, and even parallel worlds. Unlike some robots, MIRU isn't equipped with weapons. Instead, it helps people overcome immense obstacles peacefully, encouraging new beginnings without violence. MIRU continuously evolves by interacting with people, learning and growing to assist those struggling to survive. It listens to their problems and offers support. By helping others, MIRU sets off a "Butterfly Effect," of dramatic change guiding society toward a brighter future. Why was MIRU created? What is its purpose? Can it save the Earth and humanity from a dystopian future?