I'm Stuck in the Same Day

A strange explosion trapped me in the same day. How to get out of this day has become my only purpose of survival... Explosion! A daily blast! Who wants to kill the people in our building! Every time no matter where I run, the bell of death always rings for me.... Who is it? Who is the mastermind behind the scenes? What is all this for...? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.