The person he loves most in his life is his brother's girlfriend
But...
Why doesn't my brother cherish her?
She slept for three years...
But why is my brother with another girl? !
Look at that girl, she is calm and transparent, with cold eyes, how can she compare with her cheerful and happy self? …
He can forgive his brother for not cherishing her because she loves him, but...
I absolutely cannot tolerate that girl being with her brother...