From a novel, "A Man". The haiku poem made by a junior high school boy on homework who lost his foster father he had attached himself to as well as his grandfather and brother. He puts the feeling that "he was stripped of all his important part" into the poem. Later he learns the fact that the foster father got the family register of some other person and erased his own history (he also lived an empty shell life in another sense). Even though their life started from a lie, the irreplaceable time when they spent together never fluctuated.
"November 22, 2018
from “Oriori no Kotoba” by Kiyokazu Washida, The Asahi Shimbun"