12 parts Ongoing WARNING: SMUT/ANGST/DESCRIPTIONS OF BLOOD, GORE, WOUNDS,
Giyuu has a secret lover that he has hidden from his fellow hashira's, but another shocking thing is first he's gay and dating kagutsuchi kamado, the oldest child of the kamado family and oldest son to kei and tanjuro kamado. Giyuu met kagutsuchi when he was found horribly injured, then kagutsuchi brought him towards his home and healed him and after some talking between the two, sparks just happened.
Also giyuu and kagutsuchi are married, just wanna to point that out and kagutsuchi also knows Water breathing from giyuu along with two other breaths, first meaning Sun breathing as the oldest and another breath he came up with on his own. So in total he knows three breathing techines, and the kamados know about demons since giyuu told them once they met and gave them wisteria flowers for them to plant all over their house from every angle so that demons wouldn't enter, the entire village is covered by wisteria trees as well.
So first alive kamado family for this story plot plus the father and kagutsuchi knows sword fighting obviously so that in case he ever comes in contact with a demon then he'll be prepared and at times he helps giyuu when he's sent out on missions also they made sure that giyuu's crow wouldn't expose kagutsuchi to the other hashiras and master.