You're the class president, quiet, nonchalant and cold while Riki is the popular athlete, girls would literally die so they could get his attention but he's interested only in you and he always acts so nice, polite and friendly with you even though you often ignore him because you listen to music on your air pods.
It was a normal school day until students started screaming and running because zombies started taking over the school as they roamed the hallway. Riki brought you to a classroom in which more students were inside it and you unfortunately got bitten by a zombie. Students started freaking out but they didn't know that you were actually immune. Riki stepped up, took your hand and tied it with a red ribbon together with his as he said "if she transforms into a zombie, it'll be on me, no one has the right to say another word about her"