Shintarou Tokumitsu leads an ordinary high school life while living in a studio apartment just for himself. This changes drastically one morning after he finds something strange on his balcony—an angel from Heaven. The innocent and kind girl named Towa was sent to Earth by God to learn more about humans and their way of interacting. It does not take long for her to get attached to Shintarou, who eventually allows her to live with him. However, the small apartment provides little personal space and privacy, and hiding Towa's real identity from the public proves difficult. As he learns to navigate his new life with Towa, Shintarou's encounters with other girls may only complicate the circumstances.

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.

Adventuring knight Laios Touden leads a small party through a seemingly endless dungeon, a subterranean maze full of dangerous monsters and precarious traps. Through the use of advanced magic, an explorer can sometimes be resurrected, allowing them to learn from past mistakes and give traversing the dungeon another go. However, when a powerful dragon eats Falin, Laios' spellcasting sister, she sends her brother and his companions back to the beginning to save them from permanent ends. Though strapped for cash and equipment, Laios resolves to fight his way through the dungeon and rescue Falin before she can be digested by the dragon. Despite some of Laios' allies abandoning him, two remain by his side: elven mage Marcille Donato and halfling locksmith Chilchuck Tims. Due to their lack of funds, the party faces the daunting prospect of starving before being able to complete their quest. However, they find salvation in Senshi, a dwarven warrior with a penchant for cooking and safely eating defeated monsters. With Senshi's culinary expertise, Laios and his companions struggle through the dungeon while learning about gourmet dining—and each other—along the way.

Deemed a "good-for-nothing" for his low level and lack of a god-given Gift, Allen is stripped of his noble status and banished from the Duchy of Westfeldt. But Allen has a secret: he was a great hero in a previous life, and he's thrilled for the chance to finally live the way he pleases! His drama-free existence, however, is soon interrupted by a desperate encounter with his ex-fiancée. As a former hero who still possesses the incredible powers from his past life, Allen can't ignore someone in need—no matter how much he might like to! And so begins the new heroic saga our former hero never wanted!