Sick and bedridden, the zaibatsu tycoon Tomiko senses that her death is near and must nominate an heir among her three granddaughters. To decide who will receive her whole fortune, she launches a challenge: whoever will give her best in the next three months will be the winner. Shizuka, the oldest granddaughter and owner of several business companies, and Reika, the second oldest and a genius scientist, are sure that it's going to be a battle between the two of them. However, Erika, the youngest, has a plan of her own: using her only talent, singing, she aims to break through as a super idol and to do so, she must first seek the help of seven other companions.

Wakami, who can't find a job, meets Takeru Akagi on a wandering trip and struggles to stop the depopulation of the village of Gatsuma, Gunma Prefecture, where Takeru lives. Unlike the previous work, which was serialized in a 'Shounen' magazine, this work was published in a label specialized in 'Boys Love'.

A single man and woman exchange a key with a new acquaintance!? What will become of this friendship that began with the goal of avoiding a lonely death?! "If you suddenly die, I'll be the one to find you." Kii-chan, the manager of a recycle shop who's terrible at tidying, and Mr. Song, a freelance designer with a clean-freak. The two exchange keys to each other's apartments in order to avoid dying alone...!? A slightly twisted story of friendship between a man and a woman that reveals important things! Packed with tips on tidying up, trivia on avoiding a lonely death, and recipes. (Source: Akita Shoten, translated)

The story centers on two protagonists. Koma Jinguji (Jay) is the smart and handsome student council president. His elegant smile captures the hearts of women. Tsubasa Hayakawa is a multi-talented and gentle shop assistant at a café. His cafe latte with owl latte art is very popular with female customers. The two men travel through time to fight their archenemy. The charming "Butlers," as they are called, fight supernatural battles and also experience a slapstick comedic life at their academy. [ANN]