Other name: 純愛えろ期, Junai Ero-Ki, Junai Eroki, Pure Love's Sexy Time
Summary: From Nakama: A childhood friend of Kou's, Mitsuru was just struck by love's arrow. Heartbroken, he masturbates in the school library, but during his session, a guy wearing a Hawaiian shirt suddenly appears. Will he let him engrave, tear, and ejaculate on him!?