The Kingdom of Clays faces a dire crisis: an assassination attempt has just been made on its own Princess Lynneburg, and its neighboring countries eye the aftermath like starving vultures, plotting the Kingdom's downfall. The ensuing conflict will shape the face of the continent for centuries to come...but Noor doesn't have a clue about any of that! Having freshly arrived at the royal capital after over a decade of rigorous, isolated training at his mountain home, he's dead set on achieving his childhood dream of becoming an adventurer, even if the only skills he possesses are useless ones. Sure, he can "Parry" thousands of swords in the span of a single breath, but everybody knows you need more than that if you want to be an adventurer! Our hero's road to making his dream come true will be long(?) and arduous(?)—but if there's one thing Noor's not afraid of, it's some good ol' fashioned hard work!

Tiara, a princess from the kingdom of Waleland, travels to the city of Mamkestell to attend a prestigious academy for those who practice magic like herself. After passing a test to prove her eligibility, Tiara reunites with her childhood friend Rosetta, who is also a student there. She then joins and meets Rosetta's group: the athletic Lavie, the reliable Ashley, and the bookish Lynette—all of whom Tiara quickly befriends. In this institution, students are placed into one of three ranks based on their test score: group Noir being the highest, followed by Rouge and Lapis. Tiara's group is ranked Lapis, and if that wasn't enough, those who fail while ranked Lapis face expulsion. Realizing their dire situation, Tiana urges everyone to start taking their activities more seriously. On top of this, Tiara has one more purpose for excelling at the academy: to become more like her elder sister, who is a very skilled singer. However, to reach the stage that she desires, she will have to overcome many challenges, along with her companions, as she continues her magical journey.

Five hundred years ago, the fantasy world of Alneath was torn apart by a war between magically gifted immortals and mortals armed with magical artifacts. The conflict came to an end when mortals' hero, Gram, slayed the Demon Lord Veltol Velvet Velsvolt. In 2099, the world looks a bit different. Alneath and technologically advanced Earth have fused in an event known as Fantasion. Immortals have been hunted down to near extinction, and technological implants called Familia allow mortals to use magic. As the new world slowly recovers, Veltol's vassal Machina Solege resurrects him in Shinjuku, a techno-magical city constructed in the middle of devastated lands. However, Veltol's magic is severely weakened, and his former ally Marcus has betrayed him. To regain his fame and magical abilities, Veltol follows the advice of Takahashi—Machina's friend and a professional hacker—to start an unusual career: live streaming. His sharp tongue and comically poor gaming skills quickly secure him followers, but to dominate the world once again, Veltol must first uncover Shinjuku's secrets and thwart Marcus' vile plans.

On the 20th floor of the Tower, the "Regulars" who have been permitted to enter have to undertake arduous and extremely expensive tests to rank up. Most abandon hope and choose to stay where they are—but not Ja Wangnan. Wangnan is determined to reach the top and become the king of the Tower. However, he is weak and has repeatedly failed the exam, with debt collectors tailing him. In desperation, he attempts the exam one more time, only to encounter a mysterious and powerful individual: Jyu Viole Grace, a member of the crime syndicate FUG. Cursing his rotten luck, Wangnan has no choice but to form alliances with strong people, including Viole—who still refuses to be part of any team. Amid a dire situation, Wangnan must find a way to change Viole's mind to finally advance past the 20th floor, or he will never get a chance to build his legacy.