Kill or get Killed!-Expect the Unexpected!

Haruto's life become crazy after his childhood friend suddenly appeared after missing for 7 years.An unforgettable incident with his childhood friend become a nightmare to Haruto and hunted him.The worst thing become worstest when he got trapped inside an unexpected place!The only way to get out is to kill each other and only one will survive! Can Haruto get out when his childhood friend was involved on this crazy hell?!