《写信者是何人》是一部于2022年上映的日本电影，属于校园人间谜题类型。故事发生在一所高中，一个日语老师提出了一项名为“信函游戏”的活动，整个班级都参与其中。在这个游戏中，每个人都匿名给班上的某个人写信

这个神秘的游戏很快成为了全校热议的话题，各种谣言和推测不胫而走。学生们开始收到匿名信件，信中涉及到他们的秘密、梦想和内心的疑问。这些信件的内容让他们不禁陷入思考，同时也引发了一系列令人着迷的事件。

随着信件的不断到来，班级中的关系逐渐复杂化。学生们开始怀疑彼此，互相推测信件的作者是谁。他们展开了一场紧张刺激的推理和破案游戏，每个人都试图揭开“写信者”真正的身份。在这个过程中，人际关系和秘密不断浮出水面，暴露了每个人内心深处的真实面貌。

《写信者是何人》通过校园背景和谜题的设置，展现了青春期学生的成长与探索。这部电影揭示了人与人之间的隐秘关系和心理游戏，同时也探讨了人性的复杂性和社会压力对个体的影响。

影片中的人物形象鲜明而多样化，每个人都有自己的故事和秘密。观众将被吸引到这个错综复杂的人际网络中，努力解开每个人背后的谜团。同时，电影也反思了现代社会中信息传递和人际关系的复杂性，以及隐私和透明度之间的冲突。

《写信者是何人》以其扣人心弦的情节和出色的演技，引发观众对校园生活和人际关系的思考。它将观众带入一个充满谜团和悬疑的世界，挑战他们的观察力和推理能力，同时也引发对社会问题和人性的深入思考。

"Who is the Letter Writer" is a Japanese movie released in 2022, which belongs to the genre of campus puzzles. The story happened in a high school where a Japanese teacher came up with an activity called "Letter Game" where the whole class participated. In this game, everyone anonymously writes to someone in the class

This mysterious game quickly became a hot topic in the school, and various rumors and speculations spread like wildfire. Students begin to receive anonymous letters involving their secrets, dreams and inner questions. The contents of the letters got them thinking, and set off a fascinating sequence of events.

With the continuous arrival of letters, the relationship in the class is gradually complicated. The students began to suspect each other, speculating on who the author of the letter was. They launched an exciting game of reasoning and solving cases, and everyone tried to uncover the true identity of the "letter writer". Along the way, relationships and secrets continue to surface, revealing everyone's inner truth.

"Who is the Letter Writer" shows the growth and exploration of adolescent students through the campus background and the setting of puzzles. The film reveals the hidden relationships and psychological games between people, while also exploring the complexity of human nature and the impact of social pressure on individuals.

The characters in the film are distinct and diverse, and everyone has their own stories and secrets. Viewers will be drawn into this intricate network of people in an effort to unravel the mystery behind each individual. At the same time, the film also reflects on the complexity of information transmission and interpersonal relationships in modern society, as well as the conflict between privacy and transparency.

"Who is the Letter Writer" with its exciting plot and excellent acting skills, arouses the audience's thinking about campus life and interpersonal relationship . It brings the audience into a world full of mysteries and suspense, challenges their observation and reasoning skills, and also triggers in-depth thinking on social issues and human nature.