The young but feared sorcerer Zagan is a candidate to become a member of the 13 Archdemons—a group of the strongest sorcerers in the world—following the death of their eldest member, Marchosias. When attending the deceased Archdemon's estate auction, Zagan finds something he did not expect: love at first sight. The sorcerer impulsively spends all his money to take Nephelia, a rare elf slave, back to his castle. Given the girl's mysterious and troubling past, there is a lot for Zagan to uncover about his new companion. However, Zagan's lack of experience with the unfamiliar feeling of love leads to many awkward moments between him and Nephelia, whom he calls by the nickname "Nephy." As the two grow closer and get more comfortable around each other, it becomes increasingly evident that Nephy's feelings might not be so different from Zagan's.

The Magical Kingdom of Klyrode summons hundreds of heroes from other worlds every year to fight in their war against the Dark One and his army of powerful demons. Banaza is one of those heroes, summoned from the Royal Capital Paluma, but something's not right—Banaza is only an average merchant. He has no magic, no fighting ability, and his stats are abysmal. Worse, a mishap leaves him unable to return home! Rejected as a hero and stranded in another world, abandoned to the far reaches of the kingdom by a cruel king who just wants him gone, Banaza's fate looks pretty bleak. But what will happen once the failed hero candidate finds himself with super cheat powers once he hits level two?

Although everything the young duke touches perishes, his existence is far from lonely. His spirited siblings Viola and Walter, loyal butler Rob, and the eccentric witches Cuff and Zain are regularly livening up his secluded mansion. But it is the duke's flirty maid, Alice Lendrott, who fills him with the promise of a beautiful tomorrow and the determination to break this hellish spell cast upon him. The identity of the witch who cursed the duke has been uncovered thanks to Zain's unique magic and the help of Daleth, the leader of the underworld. However, the villain is a notoriously fearsome and powerful witch, who, enraged by the duke and his companions' trip back in time, torments them even from the afterlife. Moreover, an unexpected loved one reappears, strengthening the duke and Alice's hope to break the curse and finally close the distance between them.

Mahiru Kouzuki, a skilled artist, gives up on her passion after her elementary school classmates ridicule her colorful jellyfish mural. Several years later, upon encountering an unexpected admirer in Kano Yamanouchi—a former idol with a troubled past—Mahiru decides to pursue her childhood dreams once more. Tasked with designing the mascot for Kano's new music project, JELEE, Mahiru enlists the help of her childhood friend and professional streamer Kiui Watase to make JELEE's first music video. Together with Kim Anouk Mei Takanashi, a pianist and fan of Kano's work as an idol, the girls aim to turn JELEE into a global hit. However, if they want to succeed in this ambitious endeavor, they will first have to free themselves from the shackles of their pasts.