【Hroz】My sister is a succubus.

This manga is just about being raped by a succubus sister.

It has a bonus URL with a preview of the next installment in the afterword.
(*The extra URL is subject to change, so I strongly recommend you to buy it with this registration)
サイト経由になります http://www.hrozvitnir.com/buh/
Please note that the omake will be released at a later date (about half a month later).
The main story is 12p – size is 1600 vertical only.