Angelic Chaos RE-BOOT!

It began as a day just like any other. - A dull morning, an uneventful trip to school, an afternoon of tedious lectures... - And then I met her. - "I'm an angel, sent here from Heaven on a very important mission." - She appeared suddenly, and without warning―a beautiful girl who called herself an angel. - Spreading her large, snow-white wings, she made a declaration that would forever change my life. - "I come in search of the Demon Lord's reincarnation."