Help me find it please><

Help me find this yaoi manhwa please>< I read it way back before but forgot it's title.

So it has an apocalyptic setting (Zombie Apocalypse) the MC have an ability(?) which he can remember anything even if he read/saw it once. He carries a suitcase with him that contains objects that reminds him happy memories. I particularly remember this heartbreaking and wholesome moment where he got bitten/infected and the ML left him in a corner he also gave him his cap ,so ML could seek for help cause ML's sister found a cure already at the safe zone. So, the MC sat there and an illusion of his parents appeared near the suitcase, smiling idk it's just wholesome because the dead parents showed how much they cared about him, loved him. Idk if MC cried in that moment cause I pretty much forgot most of it. Please help me find it huhuhuhu. Can't forget about the uncle with kids he protected alone in a day care center(The kids was so cute(｡>﹏<｡)