You were the eldest in the society, The leader. However, if you wanted the apocalypse to be avoided, there were things you had to give up.

Including your heart. Bryce needed it for survival. Your consciousness was uploaded to a phone, allowing you to survive in the meantime - also allowing you to accompany Blame and Bryce on their journey.

"Alright...This is Video Log..day one..I think-" Blame Spoke up