You Are the Joy of Youth

Shui Chenyue raised her eyes and asked Zhou Xiaoyu: What is the color of first love? Zhou Xiaoyu frowned and said he didn't know. Shui Chenyue chuckled and said: I'm so stupid, asking you what to do, I can just figure it out by myself. Zhou Xianyu recited the words Shui Chenyue wrote on his arm: You are the joy of youth. Shui Chenyue shook her head: You thought wrongly. What is the color of first love? I think it should be gray. If it is darker, it cannot be erased. If it is lighter, it will be turned away and forgotten. What color is secret love? I think it should be white, obviously there but not seen.