Tomohiro Tsukimisato

2167 AD is shown to be devastated by a powerful electromagnetic shockwave. This is caused by a nearby star, Hydrus Beta, 20 light-years away, going supernova. The series itself is set 189 years later, in the year 2356 AD. Civilization has been rebuilt with humanity having united together to face the coming of the second shockwave of the supernova. The second shockwave, unlike the first, is to contain a great deal of matter composed of the remnants of the star itself.

Ueno may be the president of the science club at her junior high and a genius inventor, but she still can’t figure out how to confess to her crush, Tanaka! Can she find a way to give her heart what it truly yearns for?

The story is set in a world where the value of Bikkuri-Man stickers are so high that they have to be transported in a cash transport vehicle. There was also the famous robbery case one year ago, called the "300 million Bikkuri-Man sticker case." One day, a high-school delivery part-timer named Yamato gets involved in a battle over stickers between two competing convenience stores. The Angel Mart owned by the Phoenix store manager is famous for its easy-to-use glitter stickers. The Devil Store across the street also tries to attract Bikkuri-Man fans to their store. Former comrades are divided into allies and foes, and the battle of destiny begins.

On a rainy day, Fuji meets a cute critter posing as a dog and offering an umbrella and a cue card that says, “Please take me home,” and she can’t resist. With this dog-poster’s quirky charm and mysterious ways, life together becomes a heartwarming adventure of friendship and shared seasons.

Kirari, a elementary school student who lacked confidence and always spent her days alone. She loved drawing, and her sketchbook was the only friend she could open up to. One day, she woke up to find a mysterious girl who had appeared and forcibly dragged her out into the outside world. As she experienced new sights, new experiences, and a series of colorful firsts, changes began to take place in Kirari's heart...

Yurume moves from the country side to a little room in Tokyo to go to cram school. She shares the house with three other cram schoolers. Through short stories, their experiences of life while preparing for university are shown.