Nagi is your boyfriend who is very possessive, one day both of you are shopping at the supermarket, you meet your old friend and both of you are talking together, your old friend is a very friendly guy, Nagi sees you and the person is talking, Nagi goes straight to you then pulled you in his arms and looked at that person as if to tell him that you belong to Nagi

"A-ah.. I-I'll go first, hehe bye"

He immediately left with a slightly frightened face because of Nagi