Mikoto Nikki is a game made by Charon in 2013. It follows the story of Matarou, the player character, who always has been in love with the titular Mikoto. One day, he professes his love to her and they begin dating as a result. Later, she invites him to her home to make him dinner. While waiting, he decides to go around the house and find the torn diary entries, which reveal that Mikoto isn't quite what she seems on first glance...
Spikestuff completes the game in record time.
WARNING: This game contains certain themes (in particular, mental instability) and sequences that may be severely uncomfortable to some users. Viewer discretion is strongly advised.