is a Japanese manga series written and illustrated by . It has been serialized in Akita Shoten's manga magazine since November 2014.
Plot In a quiet residential district of Tokyo, far from the city's bustling nightlife, Aki Fujiwara—an aspiring manga artist—lives a modest life. One day, his former high school teacher, Makoto Nakaima, moves into the neighboring apartment. The two are pleasantly surprised by the unexpected reunion. That night, however, Aki overhears unmistakable moans of sexual pleasure emanating from Makoto's room. Unable to suppress his curiosity, he peers inside and witnesses her having sex with her husband. This discovery marks the beginning of a clandestine relationship between the two, as their interactions grow increasingly intimate and transgress the boundaries of their former student-teacher dynamic.
Publication Written and illustrated by , Rakujitsu no Pathos started in Akita Shoten's manga magazine on November 4, 2014. Akita Shoten has collected its chapters into individual volumes. The first volume was released on August 20, 2015. As of May 20, 2026, 19 volumes have been released.
A spin-off manga series, titled , started in on November 19, 2019. Its first volume was released on June 19, 2020. As of November 20, 2025, five volumes have been released.
A second spin-off manga series, titled , is set to start in Young Champion Retsu on August 18, 2026.
Volumes Rakujitsu no Pathos
Tasogare no Ethos
See also Mikazuki ga Waratteru, another manga series by the same author Futari no Ouchi, another manga series by the same author Shiori's Diary, another manga series by the same author
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