What would a good play do if there was no heroine? Then let the heroine approach him willingly, kiss him, and fall in love with him.
What if the heroine doesn't want to? Then wait slowly, or create an opportunity. If you really can't wait any longer, help her.
Song Jisheng just wanted Su Jianlin to know that he only liked her and only needed her.
Marriage first, love later
The male protagonist has been planning for a long time. He is gentle and elegant on the outside, but dark and damp on the inside.
If someone needs to save him, it's Su Jianlin.