Song: Kilby Girl The Backseat Lovers Anime Movie: 夏へのトンネルさよならの出口 (Natsu e no tunnel, Sayonara no deguchi) Summary: Kaoru Tono heard a rumor: The laws of space and time mean nothing to the Urashima Tunnel. If you find it, walk through and you ll find your heart s desire on the other exchange for years of your own life.