Reaching the height of its contrasting elements, the eighth volume of BARAKAMON positions Handa-sensei at the apex of social integration with his island family: namely, the preservation of youthful ambition and life, and the respectful observance of their forthcoming if not inevitable absence.
Youth. Miwa and Tama head out on a class trip to Nagasaki and Kagoshima. The middle schoolers really have no idea how to have fun and follow directions at the same time, and so it's no surprise to find them driving their teacher crazy, constantly getting into trouble, and for Miwa, coming down with a cold at the worst possible moment. The only thing driving these two forward is their commitment to getting sensei a souvenir.
Nascent adulthood. Hiroshi prepares for his job interview, independently at first, until sensei catches wind of it and tries his darndest to educate the high school kid on the troubles that await him in the real world. Naturally, sensei is a terrible interviewer, and so it's up to Naru and Hina to add some flair to the mock-interview atmosphere, rightfully prodding Hiroshi if his future goals and ambitions are as legitimate and hard-fought as the boy believes them to be.
Adulthood and beyond. Toward the end of this volume of BARAKAMON, there's a death in the village. And while there's plenty of humor to be found with sensei trying to absorb local custom, at times even staying above the fray, there's an inevitable emotional crash as the story comes to a close. In a village as small as Nanatsutake, everyone takes care of everyone else. Always. ("They say a person's character shows in their funeral day.")
And as such, as sensei invariably weaves himself into the stories of these characters at each critical juncture of their lives -- whether at the pinnacle of innocence (Naru) or the sunset of a life well-lived (Kiyoba) -- he further becomes a reader-analog for traversing all the indecisiveness, curiosity, and frustration inherent in aging or of becoming one's own person. Sensei sees children without parents, so he plays with them; he encounters neglected young mothers, and speaks to them; he meets wayward young adults, and mentors them to the best of his ability; and in the presence of death, he bows modestly, and says, "Thanks for all your hard work."