Yu-Huang. An alternate ancient setting, with some original worldbuilding.
Yu Wenzhou, an indulgent, devoted, dominant older brother, x Huang Shaotian, his younger brother, a snarky chatterbox and troublemaker. (You can tell from their names that they're not real brothers.)
Playful SP, training with toys (maybe), sweet and fluffy (we'll see how it goes).
The younger brother stays by his older brother's side for more than a decade out of love (just kidding). The older brother willingly lets his younger brother stab him in the heart dozens of times out of love (not really)...
Misunderstandings, melodrama, angst, and hopefully plenty of steamy scenes. There's definitely an outline, but absolutely no plot. Enter at your own risk.
Theme:
Sofa!?????