Shinrigaku de Isekai Harem Kenkokuki

A high school boy named Shinta Nanpa, who loves girls but struggles with social interaction due to a fear of women, is unexpectedly transported to a parallel universe. With no other tools at his disposal, he relies on his understanding of psychology to navigate his new surroundings. His focus turns toward an elf, a fairy, and a mermaid. This story introduces a unique approach to romantic relationships in a fantasy setting.