after blue lock open up to every sport it became very popular and held many people. including a volleyball player, yn. one day while everyone was at practice an amber alert went off signaling that everyone in the blue lock vicinity must go home and stay safe from a brain eating virus and turned people into walking corps months passed and more than half of the worlds population died. one day while yn was on a scavenge she runs into a group of boys she met back at blue lock and decided that she would be safer with them. potentially having a new lover?