I was a bit unsure about this arc, but this chapter was really wonderful and beautifully paid off so many of the different plot threads. This very chaotic abrupt situation becomes another lens through which to view even more archetypes of the elderly, and bring catharsis to others after decades. Shindou-san and Sado-san having a proper chat after all this time, each harboring this unspoken envy of the other, it's so wonderful :') I loved when they finally had all four of the star Letre authors together too, such wildly different personalities, so many funny intersections.