Two female protagonists, strong self-healing sister vs. Mature and dark sister, self-rescue➕ two-way redemption, forced love (self-avoidance), content including two male protagonists, relatively late (wallpaper love self-avoidance)
If you can't stand side by side with him, then pull him off the throne and drown in the mud with yourself.
There is no such thing as spring. In the end, selfishness trumps everything else.
There may be some shortcomings in the content you write for the first time. Try your best.