The dramatic climax of tetraology takes place in the late 1960s. Honda, now an aged and wealthy man, discovers and adopts a sixteen-year-old orphan, toru, as his heir, identifying him with the tragic protagonists of the ...The dramatic climax of tetraology takes place in the late 1960s. Honda, now an aged and wealthy man, discovers and adopts a sixteen-year-old orphan, toru, as his heir, identifying him with the tragic protagonists of the three previous novels, each of whom died at the age of twenty.