The story follows Hajime Sekiguchi, a former life insurance salesman who, in a moment of desperation, makes the unexpected leap into the world of hosts. At Club One, Hajime finds himself surrounded by a cast of eccentric personalities: a "younger brother" type host with 20 years of experience, a former idol specializing in romantic sales tactics, and a hyper-aggressive host obsessed with mobile games. Despite thinking, "This isn't a job for anyone with a sane mind," Hajime uses his polished insurance sales skills to attract clients and carve out a surprising niche for himself.

Makina Agatsuma, the school idol, moves into the home of Eita Akutsu, an introverted mechanical otaku. Eita, who has secretly harbored feelings for her, thinks he's hit the jackpot! But it turns out, she's actually a robot made for sexual purposes. Caught off guard by her sudden physical advances, the virgin Eita is at a loss. Furthermore, he finds himself in a frenzy trying to help her maintain her secret identity. A romantic comedy with a slightly risqué mechanical revelation, where hilarity ensues as they try to keep the secret under wraps!

Hinata did it. He got reincarnated into another world, took up the mantle of Hero, and slew the dreaded Demon Lord alongside his party of fellow adventurers. As his reward, he's returned to Earth to resume a normal life. Or it would be if it wasn't for the fact that his dark elf companion Mariabelle decided to travel to Earth to come and live with him! Now she uses her arcane talents to ward off any potential romantic rivals and capture Hinata's affection.

Featuring characters from NHN's popular app such as Moon, Brown, Connie, James, Jessica, and Sally living happily together in Line Town.