Lilium

Lilium is a young elf girl hailing from another world and the younger sister of Ohendeck, the chief of the elven village. Initially, she mistook the hot spring for a perilous 'Spring of Death' and, believing the protagonist Yukawa Kozou—who was bathing in it—to be a demon, she launched an attack against him. Once the misunderstanding was cleared up and she personally experienced the appeal of the hot spring, her stance shifted completely, and she became a supporter of the protagonist's pioneering efforts, revealing her straightforward nature and openness to embracing new things.