Heterogenia Linguistico, Volume 5 (Hetergenia Linguistico #37-44)

June 1983. The tragedy is finally over - at least, it was supposed to be. Years later, Rika meets up with her old friends for a club reunion... then once more awakens in June of 1983 with no memory of why she has returned. And now that Hanyu is out of the picture, Rika must face the tragedy alone...