Okuda Raichi ni Fureru na

Michio Ono, known as the "Man with an Extremely Wide Personal Space," is a world history teacher at Hadashino Private High School. Struggling with the difficulties of life, he works tirelessly every day, carefully measuring his distance from others. However, one day, he is chosen as the "favorite" of Raichi Okuda, a student from the "Octonia" species who communicate using tentacles...? Ono's fate is about to change drastically.