This is the first volume of the Happy Sugar Life manga series.
Satō Matsuzaka has a favorite person. Living together and talking about love makes you feel very sweet. Surely this is "love". She thought so. In order to keep this feeling, everything is allowed. I think that it is okay if you deceive you or even if you take or kill you. Horrible pure love Psycho Horror Vol. 1 recommended by Hamamura Kamimoto and Teru Nakamura of "Bet Keegurui". 
|Manga||Volume 1 • Volume 2 • Volume 3 • Volume 4 • Volume 5 • Volume 6 • Volume 7 • Volume 8|