The Tunnel To Summer Volume 1

One summer evening, while wandering in the countryside, Kaoru Tôno comes across a strange tunnel. Could this be the famous Urashima passage, supposed to grant all wishes? The teenager is determined to uncover this secret to bring back the one who was dearest to him, juggling between secret investigations and his life as a shy high school student... Kaoru is ready to do anything, but what will be the price to pay for activate the powers of this supernatural place?

Series in 4 volumes