A Clockwork Ley-Line: Zanei no Yoru ga Akeru Toki

Follow the story of Koga Michiru as he worked the orders of the Bureau for the Investigation of Special Affairs, or simply called "Bureau", together with his friends as they solve the schools mysteries and problems. Until that day when an unlikely visitor appeared before the school's doorsteps. In search for her grandmother's keepsake, she pushed order after order towards the bureau, an unknown f...