What did the cartoon Bingguo say?

Among the students who are looking forward to life in Rose High School, Oreki Houtarou is an energy saver and will not take the initiative to do anything unnecessary. He should have no interest in participating in extracurricular activities, but because of his sister's order, he joined the "Ancient Books Research Association" of Shenshan High School in his school. This year, the Ministry recruited four new members, including Toyotaro, and successfully avoided the crisis of abolishing the Society. However, everyone was immediately involved in the mystery of 32 years ago. The headmaster who suddenly skipped school left a social magazine called Bingguo, which contained some tearful messages ... This introduction was copied from Baidu.