They are fellow disciples, heaven's favored sons, and the envy of all who know them. If that alone were enough to bring contentment and happiness, then none of this would ever have begun.
That possessiveness toward my senior brother... Ah, perhaps I had understood that feeling for a long time.
It's really just a story about two fellow disciples solving cases and hooking up along the way.
Fellow disciples, younger top. A faithful, scheming top who seems flirtatious but is actually devoted X an icy, sarcastic, scheming bottom.
The secondary couple is a gentle, honest swordsman bottom and a sadistic, lazy top.
There are only these two couples in this story. Any other relationships between men should be taken as brotherhood and friendship.
It's too little. Write more.