Written and illustrated by Saki Hiwatari

While crossing a bridge, Takeru, his girlfriend Ichigo and his buddy Kouki vanish into thin air – leaving Kouki's little brother the only witness. Their mother doesn't believe his story, but certain other parties do. Did the mysterious Hijiri provoke Takeru to find and climb "The Tower?" Right now, all Takeru cares about is figuring out where he is and how he's going to get back.