A young organic chemist, who died in a sudden accident, finds himself reborn as a baby named Ein in a world where magic and sorcery exist. Along with his twin brother Kyle, Ein gradually influences his surroundings by applying his memories from his previous life to magic. Soon, companions begin to gather, and their efforts transform into a force capable of revolutionizing the world. This is the story of two young boys who might one day save the world through knowledge and bonds. The story includes elements of science, particularly chemistry, but remains primarily a fantasy. It is also posted on Kakuyomu and was previously titled 'The Story of Twin Heroes.'