The 1 season of 2.5 Dimensional Seduction was broadcast on Tokyo MX from vendredi 5 juillet 2024 to vendredi 13 décembre 2024. It consists of 24 episodes, the first one is called "New Student from Another Dimension" and the last one "2.5 Dimensional Ririsa".
Okumura is a second-year high school student who serves as the president and only member of his school's manga club. An otaku, he claims he has no interest in real girls due to his obsession with a fictional character named Liliel. Suddenly, a first-year student named Lilysa Amano, who is passionate about cosplay, joins the club. When he agrees to be her photographer, Okumura discovers her favorite character is also Liliel. As a result, he finds himself conflicted about the situation.