Ｍ．Ｃ．催眠研究

「Common sense, preference, thought. If you can control another person's "spirit" as much as you want, what will you do?」

The protagonist Takesato Masaru is a high school sophomore. He is the only remaining member of the cucumber research club. He always having fun during after school, where he can quietly read the books left by his senior at the club room.

But then one day, there's a phone call from his senior. The content was unbelievable and surprising──