nagi and you were in the same class.. he secretly likes you without him knowing himself.. he often tells his best friend, reo about you sometimes.. so reo knew nagi likes you. And you on the other side.. you also have a crush on him..

you were just normally walking until you saw nagi, your crush walking in your direction.. you panicked a little before you hide behind the wall then reo who sees this and nudge nagi and tells him to approach her so he did. nagi leaned against the wall, looking down at you, who still didn't noticed this