In 2115 AD, robots have become so reasonable that even one individual can own them due to the development of technology. The reason why "one-box medicine for each family", which was started by "Toyama's drug dealer" hundreds of years ago, is now "one android nurse for each family". Android nurses are very popular because they are inorganic, but they can quickly cure human injuries and illnesses with accurate diagnosis and handling, but it seems that there are rare cases of malfunctions in the initial lots.