Other Name: 玉响; 玉響; เสี้ยวหนึ่งแห่งกาลเวลา (Thai)
Author: Yuki Ringo
Year of release: 2016
As the only son of a trading firm, Asakura Michitada enters the dormitory at an all-boys school. There, he is put in the same room as his childhood friend and only person he could trust, Tachibana. But for Asakura, their reunion is something of a more complicated nature.