The Residents of Mistel

Serialized in Gakken NORA from 1993, this is a slightly occult and mysterious story set in Britain by Hirokazu Shimada. It depicts the daily lives and secrets of "immortal" people who live leisurely lives, and is a heartwarming comedy of misunderstandings that begins when the protagonist, Tia, mistakes her father for her brother. "Legend Chamber" is a spin-off story set in the same world.