According to information 1, 2, 3, and 5, Joy of Life 2's corresponding chapter was the first chapter of the fifth volume, which was the Harvest of Early Autumn. The order of the story was slightly different between the TV series and the novel version, but the content of the last episode of the TV series corresponded to the ending content of Chapter 253 of the novel, marking the end of the main plot and the fate of the characters.
Joy of Life's second season ending corresponded to the seventh volume of the novel.
I don't have the exact volume off the top of my head. But a good way to find out is by referring to the official manga publisher's announcements or asking fellow manga enthusiasts on popular online platforms.
Chapter 254 of Joy of Life was chapter 72 of the fourth volume of Joy of Life.
Chapter 254 was the 72nd chapter of the fourth volume of the novel " Celebrating Years ".
Joy of Life Chapter 253 was the last chapter of the fourth volume of the " Fog of the North Sea ".
Chapter 254 of Joy of Life was chapter 72 of the fourth volume of Joy of Life.
Chapter 253 of Joy of Life was the last chapter of the fourth volume of Joy of Life.