Shiina Kaoru, an ordinary high school student who lives in a tedious town where school is boring and there are no place to go to play, his only salvation is the live house where he watch local bands play. His ordinary life started to change when he decided to buy an electric guitar and met the mysterious transfer student, Kurosu Michiya, who owns a black Gibson Les Paul full of knife scars.

It features Kawashima Minami, who becomes a manager of her high school's baseball team. She's determined to see her team make it to Koshien (the national high school baseball tournament), but the players don't share her enthusiasm. They see the tournament as an unrealistic goal and are content for their club to focus on physical fitness, making friends, and building memories together. To learn more about management, Minami ends up buying "Management: Tasks, Responsibilities, Practices," a book written by Peter Drucker, an Austrian expert on economics and management. She finds that the respected, over 30-year-old text actually gives a lot of information that she can apply to managing her baseball team!

Though magical abilities should awaken in anyone, Tyler, an adventurer, has yet to have awaken his own abilities awaken for some unknown reason. Because he is unable to use magic, he is left behind in the depths of a dungeon by his party leader. However, when facing against a perilous situation involving his childhood friend Ariana, who stayed behind to help him, his hidden power awakens! What he obtained was unprecedented – the ability to use all attribute magic. After safely escaping the dungeon, Tyler hears about a herb that can cure his sister’s illness, and sets a goal to challenge the super-advanced dungeon, forming a new party. A different world fantasy of running up to the strongest party with girls who believe in him starts!!

The strong influence and power of Spanish navy has enabled Spain to become the foremost kingdom in Europe during its Golden Age. But this powerful navy force has always been relying on the Frontera Family, which was traditionally tied to serve the Spanish royal. But this tie was under the threat of being broken when kingdom was under the reign of Philip II. Leon became the new leader of Frontera Family when he was just 12 years old. Although Philip II has shown great respect to his deceased father, the king paid little attention to the “child leader”.

The story of Koshika begins in Tokyo on September 9, 2099. A dimensional ship, under the command of a beautiful woman named Yō Haguro, launches into space to save Earth from imminent annihilation.

Behind the prosperous human civilization, the dark genus that was supposed to be quietly buried in history — the "beast". But the "warfare" brought by someone changed their destiny. There was no way for humankind to do it in front of Terion, who regained his original power and instinct and became a hunter again. Takuya Shinomiya is an ordinary high school student who attends a private Todo school with Reina who grew up like a brother and sister. However, from the time he was fascinated by the transfer student, Kuji Hinako, his daily life collapsed. The shadow of the terion jumping into the city, Hinako who is chasing the terion. And when Takuya and Reina regain their lost childhood memories, the wheel of fortune begins to turn!