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 do not find the cause of my death in five days. "Well, good luck. I do not 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 ...?