貞子M is a story about a mysterious case that is not solved.

A story about a high school that has a suspicious incident.

The main character of this game, Kenji Iwai, is a detective who is trying to solve this case. He finds out that there are other people who are also looking for the truth.

They have their own reasons for investigating this case. They all have their own goals.

What is the main mystery of this game?

What happened at the school?

What is the cause of the death of the students?

Who is the murderer?

How is it solved?

You will have to find the answers to these questions.

This game is played with a single player. You can choose to play this game alone or with your friends.