Tales of Wedding Rings

Ten years ago, Satou fell in love with Hime, his neighbor and childhood friend, after they unexpectedly appeared with her grandfather. She's a stunning, mysterious high school beauty now, and she makes it harder and harder for him to admit his love. When their first-anniversary approaches, will he have the guts to make their friendship more than just a friendship? Or will this close-knit couple meet a very different end?