After that serena glances at the system and started to change after changing her clothes she called"Mr.joo I'm done" joo came in and ask her about her age serena said she is 24 after listening to this joo couldn't help chuckle and say he is 27 serena face flushed red and she says "so i should call you hyung" joo give her a smirk and they both got out of the hospital serena couldn't believe her eyes the place has become ruins the look like Seoul she was sure that she was in korea as she look at the sky her jaw dropped there was a massive and ominous black hole in the sky "hyung what is that thing" joo couldn't help but give her a sad look serena understood the situation and didn't say anything after that as they walk suddenly a portal open in front of them and suddenly ding!ding! a notification from the system came. ---------------------------- SYSTEM------------------------------ task:- Kill the demons and the monsters. reward:- thunder skill and 6000 coins. . failure:- death. . sponsor:- unknown