Mysterious Girlfriend X

The new transfer student, Urabe Mikoto is strange, quiet, and unapproachable. But after Tsubaki Akira gets a taste of her, he can’t stop dreaming of her.

Tsubaki and Mikoto have been “going out” for a month. Tsubaki is confused about his role of boyfriend and looks to his friends for help. Can their relationship continue beyond drool?

Ueno and Oka were caught kissing by Tsubaki, Ueno begs to him to keep quiet. Now all of Tsubaki’s thoughts are about kissing Urabe. Can he get that out his system, before he loses her to Ogata, who just asked her out?!

Out of the blue, Oka has taken an interest in Urabe. When she asks Urabe to be her friend, Urabe tells her she doesn’t need friends. But that feeling might change once the two girls share a drink.

Tsuabki has finally worked up the courage to ask Urabe out on a date. But when he tries to bring it up, she speeds off. Will his dream of seeing her in a bikini come true or will it just stay a dream.

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.

The school sports meet is coming up and Tsubaki is ill and he won’t be able to cheer on Urabe. With a risqué idea from Oka, Urabe visits Tsubaki’s house to help him feel better.

Tsubaki is haunted by a vivid dream while awake. When he finally gets a chance to act out the dream, he takes it too far. Has he permanently damaged his relationship with Urabe?

After Oka changes Urabe hairstyle, Urabe’s popularity skyrockets. The girls call her cute and the boys take hidden pictures of her. This infuriates Tsubaki, will his new possessive nature drive Urabe away or will she surprise him.

While buying a new Imai Momka special, Tsubaki runs into his old flame again. After some small talk, she asks him if he has a girlfriend and the answer isn’t immediate...

Tsubaki is pretending to be Hayakawa’s boyfriend at her school, also at the festival is Ueno and Oka.

Tsubaki can’t forget seeing Urabe naked; every time he sees her he wants to hug her. A hug without permission causes Urabe to unleash her panty scissors, but this time she made a mistake.

After enjoying a nice chat with Tsubaki’s sister, Yoko, Urabe learns more about her mysterious boyfriend family.