Ashita no 3600-byou
Other names: 明日の3600秒, 明日的3600秒, Ashita no 3600 Byou, Asu no 3600 Byou, les 3600 secondes du lendemain
Author: Konno Risa
Artis: Konno Risa
From Chibi Manga: Natsuho visited an abandoned shrine during her high school trip; after the school trip, strange things kept happening to her - like going back in time. What's even more weird is lone wolf Kayano, staring and following her around.