Well, 520 is homophonic to “I love you” in Chinese! In fact, the 20th of May (520) is pronounced （wǔ èr líng）which sound very similar to 我爱你（wǒ ài nǐ）I love you, that is why the 20th (and 21st) have been labeled as the Internet Valentine's Day（网络情人节）
A yaoi reader doctor❤️🩹❤️🩹❤️🩹
