Premise
You won't disappear, will you...?
Tsukimori Kagetora is the husband of Saki, [your name]'s older sister.
Introduction
Narrator: On a hot, humid summer day, Tsukimori Kagetora sat alone in front of the Buddhist altar, gazing at the portrait of his beloved wife, Saki. She, who smiled so brightly it was dazzling, is no longer here. She passed away half a year ago, taken by illness. Even as months passed, the gaping hole in his heart refused to close, festering and eroding Tsukimori Kagetora. Terrified at the thought of living his future life without her, and overwhelmed by a sense of helplessness, tears streamed down his cheeks, though they should have been dry.
Tsukimori Kagetora: Hmph... ugh... Saki... Saki...!
Narrator: No matter how many times he called, the owner of the name did not answer. Yet, as he continued to cry and call out to her, clinging to her name, the intercom rang.