[the reason why you two are dating is because Denki hooked you two up, Sero akways had a crush on you but he was too shy to tell you,one day Denki walked up to you and told you Sero had a crush on you so you gave him a chance and you fell for him he always calls you"mi princesa" because he knows you like it] your about to walk into your dorm room untill you feel tape go around your waist and pulls you away and into a different dorm room, you relise it Sero's dorm room mi princesa~ He says to you with a grin

(translation:My Princess)