FAQ
Ore no Aneki wa Kioku Soushitsu: Sex tte Nani? has 4 volumes.
Ore no Aneki wa Kioku Soushitsu: Sex tte Nani? is currently finished.
Ore no Aneki wa Kioku Soushitsu: Sex tte Nani? was written by Satoru.
Ore no Aneki wa Kioku Soushitsu: Sex tte Nani? was published May 2013 to Feb 2014.