"ahh!!" the man jumped from the chair "why are you screaming you sacred me " "h-h s-sorry i was just surprised mister " after listening to this the man couldn't help but let out a sign "alright so first stop calling me mister just call me joo " the girl ears flushed "a-a-alright mr.joo" the man look up and down and say "yes just call me that but can you please exclude the honorifics btw since you don't remember your name i will call you serena ok" the girls face flushed "okay" suddenly a ding sound came from behind "what's!that sound!" the man look behind and say"that's the system " "oh so that thing is called system i am so confused right now can you please explain about everything " the man chuckled and say " when everyone was living their life peacefully the apocalypse started many people died or lost their families hmm.." hello Mr joo what are you thinking the man snapped out of his thoughts"oh it's nothing I've never see anyone from different worldline before but i think you are a live example " joo goes to the hospital drawer and pick some clothes from it " here put this on we are going out" he hand over the clothes to serena and left the room "hmm that man is weird" she put her hand on her lips and mummurs serena