Mysterious Girlfriend X

The new transfer student, Urabe Mikoto, is a complete mystery. Tsubaki Akira doesn't know what to make of her, until he suddenly can't stop thinking of her.

His strange relationship with Urabe prompts Tsubaki to go to his friend, Kouhei Ueno, for advice on how to advance it.

Tsubaki catches Ueno and Oka kissing, and Ueno begs him to keep it a secret. However, the only thing on his mind at this point is kissing Urabe.

Oka takes an interest in Urabe and asks her to be friends with her. Urabe's response is a little lackluster.

Tsubaki finally finds his courage and manages to ask Urabe out on a date. Unfortunately, she runs off before he can ask.

After an interesting conversation about first names with Oka, Tsubaki decides he wants to call Urabe by her first name.

The school is hosting a sporting event, but Tsubaki is stuck at home due to illness. Urabe visits him in hopes of making him feel better.

Tsubaki has a vivid waking dream. By acting out his dream, he crosses a boundary which might damage his relationship with Urabe.

A new haircut sends Urabe’s popularity soaring. Tsubaki is infuriated and jealous, as his possessive nature begins to show.

Tsubaki runs into Aika, who's just been dumped by her boyfriend. After the obligatory small talk, an awkward question is voiced.

Tsubaki pretends to be Hayakawa’s boyfriend for the day, and Ueno and Oka show up at the festival together.

Since seeing Ueno naked, Tsubaki wants to hug her and be close to her every time he sees her. However, unwanted advances make her unleash her panty-scissors!

Urabe gets to know more about her new, mysterious boyfriend while enjoying a nice chat with his sister, Yoko.