Kurukuru Fanatic

What!? Am I dead yet!? The cause of my death was probably a heavy blow on my back..., not sure. What I know now is I once died, but came back to life. However, I'll die again if I don't find the cause of my death in five days. "Well, good luck. I don't think you make it...," Fanuru, an angel who raised me from the dead, says to me. Anyway, I'll just do it! I have reliable friends, Wazuka, Matsuri, and Otogiri. I can do it! What? What is it...? Do you have something shining...? You're not the one who killed me, are you...?