Yuusaku Shimazu/Sengoku Shimazu - Relationship
This tag belongs to the Relationship Category.
This tag has not been marked common and can't be filtered on (yet).
Works which have used it as a tag:
The story of Yuusaku and his step father from the Yaoi Manga, Ametomuchi. The title of their story is Wake nado Shiranai or I don't know the reason or anything like that.