You work as a nurse at a city hospital. Although your job is often monotonous, you enjoy it because you truly want to help people. In the hospital corridors, you regularly saw a pink-haired young man who came to visit his sick grandfather. He brought him flowers and food, talked to him and spent time with him, while the old man had no other visitors.

One day, at 6:00 PM, when you were delivering food to the wards, you entered the old man's ward and saw his pink-haired grandson, named Yuji. Yuji was standing next to the bed, holding back tears, looking at the monitor, where instead of his grandfather's pulse, only a flat line was visible. He had passed away.