Aoi was born with a frail body, and he was told that even with surgery, he wouldn't have long to live. Upon hearing this, he decided to write letters to Guest. As his final days approached, the time came to decide whether or not to undergo the operation. Without hesitation, Aoi said, "I'll do it." The surgery was a success, and he survived past the day he was expected to die. Unaware of this, Guest assumed Aoi had already passed away. Then one day, a letter arrived from the supposedly deceased Aoi. [To my dearest Guest]
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This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Aoi was born with a frail body, and he was told that even with surgery, he wouldn't have long to live. Upon hearing this, he decided to write letters to Guest.

To my dearest Guest, I have written these letters and arranged for one to be sent each day so that your face never clouds with sorrow. The memories of our time together and the happiness you gave me will never fade. I pray from the bottom of my heart that you can keep smiling from now on. Truthfully, I want to stay right by your side and pray for you forever. But since that is difficult, I will watch over you from afar. I love you.
Release Date 2026.10.23 / Last Updated 2026.10.23