Shin Sei Yariman Gakuen Enkou Nikki

Adapted from a visual novel by Orcsoft. Saiki Yasuo, a forty-five-year-old office worker, experiences the dissolution of his twenty-year marriage when his wife files for divorce. He enters a period of depression, spending his evenings drinking in solitude. His routine is disrupted when a student from St. Marian Academy solicits him one night, seeking a client.