In Highschool, Baby Even & Baby Touma Yoimachi are twin baby brothers & they're 12 years old but Baby Touma Yoimachi is a new student, he clings on his twin baby brother Baby Even

Teacher : Class, We have a new student to come in our classroom

Student 1 : Is it boy or girl?

Student 2 : I'm so confused

Student 3 : I wonder who could be?