Mysterious Girlfriend X has arrived on Hulu and Crunchyroll, offering the complete 13-episode run with both English dub and subtitle options. The series, adapted from Riichi Ueto's manga, centers on Akira Tsubaki, who develops an intense, almost obsessive bond with the enigmatic transfer student Mikoto Urabe.

Produced by Hoods Entertainment, the show gained notoriety for its peculiar premise involving saliva-sharing as a symbol of deep connection, pushing the boundaries of typical romance anime. Despite its unconventional approach, the series explores themes of coming-of-age and first love within a high school setting.

With a MAL score of 7.22 from over 160,000 voters, Mysterious Girlfriend X remains a distinct entry in the romance genre. Its availability on multiple platforms allows fans to experience this unique psychological romance, which concluded its original broadcast in Spring 2012.