Natsukashii 懐かしい

While Hadria Potter and Gellert Grindelwald are in Japan for the New Year's, Gellert leaves Hadria home alone (with her pets and a Grim) in search of a legendary magical peach medicine rumoured to have the ability to cure almost any ailment. But things are never simple for Hadria and Gellert, and what should have been a peaceful New Year's becomes fantastically… strange.