People may have a deep impression of their college life, vividly remembering it, and remembering it like a treasure. However, my college life has been washed away by the big wave of time, and almost nothing is left in my mind. It is far less profound than the imprint of the black senior year in my brain. It's not that my college life was unremarkable and had nothing to remember, but that after suffering the heartbreaking pain during that period, I didn't want to think about those times anymore, and my brain selectively forgot those past events. Because there is his presence and breath in those times and past events. Contrary to expectations, because I didn't recall much of the events of those years, other things were gradually forgotten. Everything related to him still existed firmly in my heart, and became more prominent, as if no one else had been to my university except him, and other things had happened. Our story takes place in a university dormitory. ...