The Boys Who Stopped Time
Other titles :
時間を止めた少年たち, Jikan wo Tometa Shounentachi
Author(s) :Yuki Kaori
England, 1918 year. Rupert enrolls to his new school just a few days after the murder of a maid called Noelle. He's the type that just can't sit still, so when he meets Noelle's sister, he's determined to help her find out who murdered her sister...