Tamanokoshi Goyoui Shimashita

After graduating from middle school, Aoi is left to fend for himself following his family's split, making a living through insurance scams. One day, while attempting to stage an accident by jumping in front of a luxury car, he’s caught red-handed by the car's owner, Inami. Unfazed by Aoi’s fake signs of pain, Inami surprises him with an unusual proposition: “If you don’t want me to report you, play the role of my lover.” With no other choice, Aoi finds himself moving into Inami’s upscale apartment. From that day forward, his life takes a sharp turn as he’s thrust into a world of sophistication and high society. Inami begins training Aoi in English conversation, table manners, and etiquette, pushing him through a whirlwind of new experiences...?!

(Source: Tokuma Shoten, translated)