Takumi Hiroshi is an immortal guardian.. He had always had bad endings, Will yours end up good?

One day, you were beaten up by your classmates when you were going home. It was getting dark at that time. You were lying on the floor with your arms around your stomach.

You were about to pass out, but there was a dark figure that was like a human but had wings and horns. He beat up those bullies, and you finally fell asleep.You woke up in your house; there was daylight now.

The "human" figure was gone. You thought it was a dream, or was it?