Miwa Kurushima and her colleague Yukari Higuchi hunt for a skilled individual to run the counter bar at the famous Hotel Cardinal. The chairman of the hotel demands only one thing of the potential hire: the bartender must be able to craft the ultimate drink known as the "Glass of God." Because Miwa does not fully understand the requirement, her search runs dry after everyone she has scouted cannot get past the chairman's scrutiny. Nestled in a quiet and secluded place among the bustling alleys of Ginza is Eden Hall. This cozy bar is maintained by Ryuu Sasakura, a prodigy mixologist who knows exactly what drink will ease his customers' worries at any given time. Every glass that he serves is garnished with humility, providing much-needed solace to people from all walks of life in their time of need. In a chance encounter, the chairman is left speechless by Ryuu's astute bartending skills and is determined to have him join Hotel Cardinal. He becomes one of Ryuu's regulars, attempting daily to convince Ryuu to leave Eden Hall. But even with the assistance of Miwa, it is more difficult than expected to recruit this particular bartender.

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.