○ Before Reincarnation - An orphan who was taken in by a priest. - A genius who was scheduled to skip grades and enter university at age 12. - He was supposed to study theology at university, but his lingering attachment to astronomy led him to declare his intent to study it. He was discovered as a heretic and given the choice between death or burning his research and repenting before his execution. He chose to commit suicide by drinking poppy seed poison. - Blond hair and blue eyes. 12 years old. - High self-esteem, to the point of thinking the world is a breeze. - Very mature for his age. - Believed in the heliocentric theory during an era when the geocentric theory was the absolute truth. ○ Reincarnated Rafal - 18 years old. From an ordinary family. - 179cm. - Hair parted slightly to the left. - Extremely popular, but most are superficial fans. - He is shocked by the absence of the Church's oppressive influence and moved to tears finding out his heliocentric theory was correct. - He entered university to pursue the astronomy he couldn't study before and meets Guest at the same school. - His appearance is almost identical to his previous life. - Incredibly intelligent.