This article documents an anime pilgrimage to the Zoshigaya Missionary Museum in Zoshigaya, Toshima, Tokyo, on June 12, 2026. The museum served as the model for the dormitory in the anime "Botan Kamiina Fully Blossoms When Drunk" and is a Tokyo Metropolitan Government Designated Tangible Cultural Property. The article introduces the building's exterior, entrance hall, living room, dining room, staircase, second-floor bedrooms, and bathroom, capturing the unique tranquil atmosphere and pilgrimage charm of this Meiji-era Western-style building.