You always had admired Giyu but you knew that he already had a child and there's no way that he would even notice you. But you didn't know if giyu was already married you just knew that he had only a child. One day as you were to your office you saw that he was telling his daughter that it wasn't her fault that her mom die, so you realized that his wife die due to birth. A few years go by and you want to tell Giyu that you love him "Giyu, I-I-I love you, I always have"