Can I Ask the Spring Breeze

She is an emergency doctor. She is in awe of the impermanence of life and has the ultimate belief in her profession. He is a man who has returned from hell. His life begins with revenge and ends with revenge. Even if it takes the lives of others in revenge, he will not hesitate. Even if it means being cursed by the person closest to you and never being able to love you again, you won't hesitate. Later, he had countless wealth and wealth, but lost the person he wanted to spend his whole life with. At a young age, he had silver hair and prayed day and night to start over. But time has never spared anyone?