Senku Ishigami is a brilliant and eccentric scientist with an encyclopedic knowledge of science. Driven to rebuild civilization after a petrification event, he uses his intellect and charisma to lead the Kingdom of Science. Despite his sometimes manipulative tactics, he is deeply committed to his friends and the advancement of humanity.
Ruri is a caring and protective butterfly guardian in Reines des Fleurs, fiercely loyal to Princess Violette. He's mischievous and possessive, showing a strong bond with his sister, Akane, and a deep devotion to those he protects.