Life Shining Across the Years

In a calm present day, Kanata tries to wake his younger sibling Sumihiko for school, but seeing the boy barely conscious, he sets off alone. Elsewhere, Yoshiteru Agatsuma weeps over a memoir of his great-grandfather Zenitsu, reaching the passage about Muzan's defeat, until Toko, a sister who looks much like Nezuko, kicks him and orders him to stop reading the family's tall tales and focus on his poor grades.

Walking to school together, Yoshiteru reflects that every other woman in his family was gentle and well-mannered, unlike the fiery Toko, and asks whether she believes in reincarnation, suggesting that everyone who perished battling demons to secure a peaceful world has been reborn to live in peace. Toko ignores him, admiring a news alert that an athlete named Tenma Uzui has won a gymnastics gold medal for Japan, a young man Yoshiteru finds rude despite his looks.

A different headline draws Yoshiteru's attention, and he grabs the phone from his sister to read about a botanist named Aoba Hashibira, who discovered a rare Blue Spider Lily that blooms only by day for a few days each year. Aoba faced harsh criticism after a mistake in handling the flowers left every one of them withered, forcing a public apology. Through such glimpses of the descendants and reincarnated likenesses of the fallen, the saga ends on the enduring peace the slayers gave their lives to secure.