In a car accident on a rainy night, I hit Su Wan's car. As a budding architectural designer, I'm used to calculating everything accurately, but I couldn't calculate this accident. She had a broken arm, but she smiled and comforted me: "Mr. Lin, don't worry, you just stopped me." I am Lin Shen, a person who doesn't believe in coincidences, but started "dropping in" to the hospital every day to deliver her favorite white peach oolong. Until I saw the diamond ring and note left by her ex-boyfriend in her ward: "Wanwan, as long as you look back." I silently placed the thermos cup at the door, and for the first time I couldn't figure out whether I should move forward or backward. When she chased her out, the rain was as heavy as that day: "Lin Shen, can you add me to your drawing?"