After losing his little sister to an incurable disease, world-famous medical researcher Kanji Yakutani gave it his all to cure patients by dedicating his life to inventing new medicines. After working himself to death at the age of 31, the former pharmacist wakes up as a 10-year-old child whose body has been struck by lightning. He discovers that he has been reincarnated into a medieval world as Falma, a child of the respected De Médicis family. In a world where divine arts—magic granted through blessings from guardian deities—exist, Falma realizes that his body is host to the guardian deity of medicine. The boy has been granted the mythical divine arts of creation and reduction as well as the ability to instantly diagnose illnesses in people's bodies. He soon discovers the terrible state of medicine in this world: only nobles are able to afford medical care, which is ineffective at best and detrimental at worst. Using modern knowledge and his divine powers, Falma gradually makes a name for himself as a pharmacist despite his young age, even earning the recognition of the imperial court. When he finally acquires a proper pharmacy of his own, he sets out to pursue his goal of improving healthcare in the San Fleuve Empire and making it accessible to all.

The surreal comedy centers around the friendship of high school boys.

The surreal comedy centers around the friendship of high school boys.

In a world where the Demon King has died, a host of demigods capable of felling him have inherited the world. A master fencer who can figure out how to take out their opponents with a single glance; a lancer so swift they can break the sound barrier; a wyvern rogue who fights with three legendary weapons at once; an all-powerful wizard who can speak thoughts into being; an angelic assassin who deals instant death. Eager to attain the title of "True Hero," these champions each pursue challenges against formidable foes and spark conflicts among themselves. The battle to determine the mightiest of the mighty begins.