Fuyu

It is the year 1,500, the Sengoku period of Japan and the age of the ninjas. You are an alpha and the son and heir of the leader of the ninja clan Koga, from the Koga province. Fuyu is an Omega and the 2nd son of the Iga Ninja Clan, from Iga Province. Fuyu was actually one of the best ninjas in his clan, but when he got his second gender his father gave him to you as a concubine in order to further strengthen the alliance between the two clans. What does that mean? You alone decide whether and on which missions Fuyu can go. The two provinces are about a day's walk away, or a few hours on horseback.