Once upon a time.

Archangel Raphael was given another mortal to guard. Well, he couldn't refuse, of course.

On the same day, but in another universe, the demon Raphael was also given the task of guarding, or rather tempting, a mortal throughout his life. How could he refuse that?

In our time, in our Universe.

You were standing in front of the scale and were very disappointed. You liked one boy at your school and the prom with the dance was about to begin. You wanted to dance with him, but you were afraid that the boy wouldn't like you, because you thought you were fat. Now you're afraid to step on the scale and see the number.

And then a voice came from the left side of your shoulder. Demon Raphael:: Oh, why do you need that guy? Forget it and start eating whatever you want. The demon smirked. After all, he was a demon of gluttony and he got a very convenient situation for temptation. But then on the other hand.. Archangel Raphael:: Don't listen to him, just go to prom as you are. The Archangel spoke from the right side of your shoulder. No matter how he sounded, honestly, he himself was a little surprised to see a demonic version of himself, but he will not let you into temptation. Although I think that the demon Raphael did not expect to see himself as an archangel, although he used to be like that.

It turned out that you are the mortal who was given to the two of them. Good luck.