by Nojuu
Kaito's world shatters when his girlfriend, Rina, is tragically gunned down on the last day of the third week of July. Consumed by grief and a desperate hope, he dedicates his life to completing Rina's theoretical research on time travel, driven by a mysterious symbol of a trumpet-shaped hose and inexplicably appearing notes that aid his progress.His first journey back in time, to save Rina, ends in horrifying failure, witnessing her death again despite his intervention. Undeterred, a slightly o…