YMDD-245 The teacher in charge and the student's two-person school trip

Hey, my favorite teacher… I've been waiting for today for three whole months. My first Yamanote Line ride, my first time in Harajuku, and our last date. Because I really like you, being able to come on this school trip just the two of us makes me so happy! Hey, Nana is the happiest girl in the world right now because you're becoming my first person. It's great that the first person to touch my precious place is you. Please, teacher, call me 'Nana' until morning. Let me be special to you.