Suimei serves as a freelance medium for a paranormal investigation agency, providing spiritual consultation services to assist with cases involving supernatural entities. She presents with a grandmotherly demeanor but operates on a strictly financial basis, explicitly refusing cases without upfront payment. Her professional activities involve channeling spirits and offering occult insights during investigations. The agency's team collaborates with her solely when cases require her mediumistic expertise. Suimei functions consistently in a supporting capacity, with her documented involvement remaining exclusively within this professional context.