Chi. Chikyuu no Undou ni Tsuite

In Chi. Chikyuu no Undou ni Tsuite, twelve-year-old prodigy Rafal believes that the safest way to live is to act rationally, earn praise and respect from society, and never let emotion lead him astray. To that end, he publicly declares his intention to study theology, the academic field held in highest regard in early 15th-century Poland. But an encounter with a mysterious man upends Rafal's life, sparking an illogical desire to pursue astronomy instead and drawing him toward a truth that is dangerous to even consider. Rafal becomes determined to prove the beauty and rationality of heliocentrism, the theory that the Earth revolves around the Sun. The powerful Church, which promotes geocentrism and treats any rival idea as heresy, insists that the Sun revolves around the Earth and that its doctrine is the only truth of the universe. Those whose beliefs do not align with the Church suffer unfathomably gruesome consequences, so Rafal must pursue precise calculations and build empirical theories in secret. As Chi. Chikyuu no Undou ni Tsuite unfolds, the series turns that forbidden idea into a legacy of risk, sacrifice, and persistence, following the danger of asking questions in a world determined to punish curiosity. Rafal's greatest challenge is not only proving a heliocentric model of the universe, but also conducting his research discreetly lest he meet the same fate as other heretics.