This is a story that weaves together people and a town. A coal mining town crowded with small-scale excavators, commonly known as the "Hakoniwa." In this town that changes daily like a labyrinth, there's a girl named Kagari who runs a mapmaking business and a boy named Yuya who dreams of breaking free from the "Hakoniwa." Eventually, the two, along with the unique residents of the town, find themselves confronting a conspiracy that shakes the entire town. The fate of the” Hakoniwa" depends on Kagari's drawings on the map.

i☆Ris has reached the 10th anniversary of their debut and is enjoying smooth sailing, but there was a thought that came to the minds of the girls. "What will happen to us in the next 10 years?" On the day of a live concert, a mysterious talking white squirrel suddenly appears from a T-shirt of goods delivered to i☆Ris' dressing room! Suddenly, they are enveloped in a dazzling light, and what spreads out before their eyes is a mysterious world with many big rainbows floating on it. This is Risu Risu Land, a world where you can be anything you want to be! The five of them are enjoying themselves in this fun and wonderful place, fulfilling their dreams, but they realize that there is something "missing" in this world. There is no "song" in this world. Shirorisu asks i☆Ris for help to bring back the "song".... Why did the "song" disappear? Can they bring "Song" back to this world once again? And at the end of this journey, will the girls find what they really want to be?　

What will it take to make her wish come true? After a draining December, Sakuta is quickly nearing the end of his second year of high school. Since Mai is a third-year student, they don't have much time left together before graduation rolls around. Meanwhile, his sister, Kaede, is slowly but steadily venturing outdoors again. Just as she begins to find her footing, she announces her most ambitious goal yet—attending her brother's high school! Sakuta knows better than anyone how difficult this will be for Kaede, and he's ready to support her however he can. He's just not sure if that's what's best for her...or what she really wants...

When you look up at the sky, what do you see? A blue sky? Freedom? A hopeful future? The people of Tokyo see none of these. Instead, an ominous alien mothership looms overhead, engulfing the city skyscape. Three years ago, they came. The arrival of the "Invaders" sparked the greatest war humanity had ever faced—one that threatened to end the world. The Japanese government scrambled to fight the Invaders. Weapons were mass-produced, sparking controversy and pacifist movements. That day, everything changed. And yet, nothing has changed. Kadode Koyama and Ouran Nakagawa live their final days like they always have: going to school, playing with friends, and doing what any carefree high school girl would do. As they grow up they come to learn what it truly means to be an adult, in a world where adults seem to be demons who only deceive and destroy. They come to learn the real threat to humanity is not the Invaders, but humanity itself.