Toshi densetsu manga

Toshi Densetsu summary:

From Sync Scans: If you the one you loved were known as the “Murder Devil”, would you kill your lover? Or, would you wait to be killed? Includes: Toshi Denestsu Yomigaeru Sattujin Oni From a psychological test, he is diagnosed as having a trait of a murder, and because of that, she is attacked with a lot of unsolved incidents?! Migigawa no Akai Yami Is this a curse from the girl, who was bullied and committed suicide because of her illness, which caused her right eye to see only the color red?