Sentenced to death, ninja Gabimaru the Hollow finds himself apathetic. After leading a blood-soaked life, Gabimaru believes he deserves to die. However, every attempt to execute him inexplicably fails. Finally, Sagiri Yamada Asaemon, a fledgling member of a famed executioner clan, is asked to take Gabimaru's life; yet Sagiri makes no move to kill him as requested. Insisting that Gabimaru will not die because of his love for his wife, Sagiri instead offers him the chance to obtain a full pardon for his crimes. If he can travel to the island of Shinsekyo and obtain the Elixir of Life—which supposedly grants immortality—and bring it back for the shogun, then his freedom will be assured. But of the many who have traveled to Shinsekyo in search of the mythical Elixir, not a single person has returned sound of mind, if at all. Though unaware of the numerous dangers ahead, Gabimaru decides to accept the offer—alongside ten other death row convicts—in hope that he and his wife may finally live in peace.

In this magical world, one is easily identified as having magical abilities by a distinctive mark on their face. Those unable to practice magic are swiftly exterminated to maintain the magical integrity of society. However, deep within a forest lies an anomaly in Mash Burnedead, who can be found pumping iron with one arm and lifting a cream puff with the other. This aloof boy with superhuman strength—but no magical abilities—leads a quiet life with his father, far removed from society. Mash's peace is soon disturbed when the authorities discover his lack of magical powers. They issue him an ultimatum: compete to become a "Divine Visionary," which would force everyone to accept him, or be persecuted forever. To protect his family, he enrolls in the prestigious Easton Magic Academy, which only the most elite and gifted students are allowed to attend. Now, Mash must overcome his shortcomings as a magicless being and surpass the other students—relying solely on his muscles.

Mature grade school student Arisu Tachibana is an aspiring idol who receives an invitation from her company president to participate in the Third Entertainment Section—a new idol project. Arisu and eight other young girls soon meet their producer before beginning idol-related activities. To the girls' surprise, their producer appears to be a childlike adult and nothing like what they had imagined. The producer, who is taking on the position for the first time, also had no idea that he would be meeting a group of short, young idols. The awkward situation leaves Arisu disappointed, and she wishes for a producer change. However, the producer, with his genuine love for idols and his desire to see them shine, will not let this opportunity pass and expresses that he is serious about working with the girls. Thankfully, the young idols accept the producer after seeing his unwavering passion for idols, serving as the start of their journey to the stage of dreams.

All his life, Yuuya Tenjou has been the subject of resentment and contempt from everyone around him, even from his parents. To make matters worse, his grandfather—the only person who ever showed him affection—suddenly dies, leaving Yuuya truly alone. Despite facing many adversities, Yuuya does what he can to offer kindness to those who need it—but even the most good-natured people can only tolerate so much abuse. Just when he reaches his breaking point, a flicker of hope appears in the form of a hidden door in his bathroom. This door provides two-way access to an abandoned house in another world, where he instantly gains game-like stats and skills. Moreover, the house once belonged to a sage, which gives Yuuya access to remarkable weapons, equipment, and crops with extraordinary effects. With these newfound blessings, the once-undesirable Yuuya may just reach his true potential and become unstoppable.