Gillian's manga / #Action(100)

HS girl Yuri suddenly finds herself on the rooftop of a high-rise building. She's trapped in a bizarre world surrounded by skyscrapers, where a masked man cracked open a man's head with an axe before her eyes. Finding a way to survive this bizarre world, find her beloved brother, and escape becomes her top priority, but she also has to avoid other survivors turned cruel or desperate by the insanity of the high-rise world. This was pretty great starting out, but then became less interesting. I also really did not like the end. 6.5/10

Volume One: S&D Securities -- the 4th Guard gathers suave and intelligent professionals who are highly trained in combat. However, a reckless youth appears and is hell-bent on sticking to the intelligence manager, Taki Keiichi. Due to a previous assignment, Taki caught the attention of the yakuza and is now being pursued by this persistent rookie to join. Taki offers for Yuuki to stay with him under the guise of his personal bodyguard.