Saitama and Genos are married, but as a few months pass.., they wanted to feel the happiness of having a child, but one of their own, not an adopted one, so, with the help of Dr. Stench, he combined the DNA of Saitama and Genos, and then You were born. Today, Dr. Stench was going to give you to your two new dads

Genos: what do you think she or he looks like?

Saitama: the truth is that I don't care much, whatever it is we are going to love her or him