In 1910 when he assumed office as advisor to the Department of Literature of Keio University (he recommended Kafu NAGAI as an instructor), from May people involved in the Case of High Treason began to be arrested.
慶應義塾大学の文学科顧問に就任（教授職に永井荷風を推薦）した1910年（明治43年）は、5月に大逆事件の検挙がはじまった。