Season 1 Episode
- Season 1 Mysterious Girlfriend
- Season 1 A Mysterious Bond
- Season 1 The Mysterious Test Tube
- Season 1 Mysterious Girl Meets Girl
- Season 1 A Mysterious First Date
- Season 1 Mysterious Step Up
- Season 1 Mysterious Flu
- Season 1 Mysterious Sensation
- Season 1 Mysterious "Somewhat, A Little"
- Season 1 Mysterious Adventure
- Season 1 Mysterious Cultural Festival
- Season 1 Mysterious "Squeeze"
- Season 1 Mysterious Girlfriend and Boyfriend
Mysterious Girlfriend X - Season 1 Episode 6 Mysterious Step Up
6.61 26 minutes After having a conversation with Oka about first names, Tsubaki wants to call Urabe by hers. While waiting for Urabe, the girl from the picture he once carried in his wallet stops him to talk, and surprises him with a question.
