Genres: Drama , Tone Changes , Blackmail , Psychological , School Life , Loli , Seinen , Mystery , Supernatural
Description:
Hana was enjoying her peaceful days at school until she received a mysterious letter which said: "Do not say a word."... She doesn't know what to do, thus she begs for help of her friends to find out who is the sender and what is that she forgot she should be not saying..? But the truth is more terrifying than she expected. (Source: MU)