Myoui Mina finds an abandoned dog and takes it home. The dog is more than it seems, a protector Knight-errant in disguise.

I've seen the tears and the heartache, and I felt the pain I've seen the hatred in so many lives, and lost in vain And yet through this darkness there's always a light that shines through And takes me back home Takes me back home   Because your love hears my soul once again I can live and I can dream once again Because you made me love you