Cold people and warm people are standard.
She thought so until she was twenty.
What happens when two indifferent people get together? Light and tangy? Warm and fiery?
She doesn't know.
All she knew was that he was like flesh growing on the tip of her heart.
She tried digging it out, but she burst into tears and almost died from the pain.
Fortunately, she also left an indelible mark on him.
From then on, the fish and the water were affectionate and inseparable.