main character Corpse Party: Sweet Sachiko's Hysteric Birthday Bash the little girl Sachiko, who was killed at a very young age. Of course, this directly affected the sweet girl who was taken from our world so early. She has become a bloodthirsty and vengeful ghost who destroys those who are responsible for the deaths of other children. But this does not stop her from remaining a child at heart.

In Corpse Party, Sachiko decides that she is declaring an amnesty for exactly one day for all the victims whom she herself killed. This time is allotted for them to have fun, participate in various events, competitions, and so on. Such generosity because it’s her birthday and, as usual, she’s turning 7 years old once again. The user will have to join an incredible group of damned souls that could previously be met in previous versions of the game.

The gameplay is made in the form of a visual novel. To be more precise, the gamer will make decisions through dialogues and the choice of certain actions. It is the conversations, as well as the story itself, that develop the plot and move it towards its ending. In order to complete the main task, the player must do everything possible to ensure that in the end there are as few victims as possible. During the passage, he will have to visit a variety of locations, including: dungeons, dense forests, an abandoned theater and much more. Through flashbacks to the past, the fates of the heroes of the animated manga are revealed.