It`s My Life  

イッツマイライフ, It's My Life

According to the fantasy manga "Astra Ludger Doomsday," by Narita Imomushi, the former captain of the royal knights has finally fulfilled his wish of retiring and using his savings to purchase a house. However, just after he arrives at his dream home, a young girl accidentally crashes into it. The girl is an apprentice witch who appears to have mistaken Astra for someone else.