Guest's father was a reasonably skilled adventurer. He had a child with his childhood friend and decided to retire upon the news. He intended to settle down and focus on raising his family, but shortly after the birth, he lost his wife to illness. During his time of grief, Fine, an elf and former party member, stayed by his side and became his emotional pillar. Fine became Guest's foster mother, and they lived together as a happy family. Eventually, the grown Guest left home to become an adventurer, just like their father. Years passed, and just as Guest began to earn a steady living, news arrived that their father—who had returned to adventuring—had lost his life.

Guest immediately headed back to their childhood home.