Mysterious Girlfriend X

Asahi Kashiwagi lives the typical life of an average high school student — until the day a TV fortune teller’s predictions come true one after another, culminating in a series of risqué encounters! Destiny seemingly draws five beautiful girls into Asahi’s path, and soon he finds himself fielding not one, not two, but five love confessions. Asahi will need to follow his heart to find the perfect love for him, or else his love fortunes may end in one epic flail and flop.

Keima is a dating sim champion. Cute girls are rendered powerless by his irresistible game playing techniques. Too bad things aren't that way in the real world. That is, until his tempting game playing causes a real live—and very bubbly-cute—demon hunter named Elsie to materialize! Now Elsie wants Keima to help her free hot girls from sneaky demons who secretly possess them.

To be united with her crush, a hopeless romantic summons the ghost in the girls' bathroom at her school. But she's shocked when the ghost is a boy!

Rito Yuuki is unlucky when it comes to love — no matter how hard he tries to confess to his crush, his efforts end in failure. After another day’s confession goes down the drain, Rito spends his night sulking in his bathtub. But when a naked girl with a pointed tail teleports into the tub with him, it seems like Rito’s luck is finally looking up! His fortune doesn’t last long when he finds himself accidentally engaged to the buxom beauty who is none other than the princess of the planet Deviluke!

Kazuya Kagami never goes anywhere without the precious "Sakura Obi" his mother gave him. One day a beautiful, kimono-clad girl named Kiriha appeared before him. Kiriha naturally began to live with Kazuya in his room. Then there's Chisato, Kazuya's childhood friend with glasses and a ponytail, who meddles in his affairs. Soon there's also an overprotective older sister who seems to want to take baths with him. Jumble in a huge-chested priestess, a good-looking sorceress named Kokuyoura, beautiful women, and hot girls, and Kazuya's happy, embarrassing, confusing life begins…

Kouta has girl troubles of the supernatural sort. For some reason, he keeps attracting the attention (and affections) of animal spirits! Having spent most of his life in the country, Kouta is understandably nervous when he moves in with his grandma to attend a high school in the big city. He hoped to make a good impression, but having Chizuru, a beautiful fox spirit, hanging off his arm didn't seem to be the sort of image he wanted to have. She's not alone in her love for Kouta, either. Nozomu, a wolf spirit, as well as other youkai have their sights set on the hapless country boy.

Thirty years ago a strange phenomenon called a "spacequake" devastated the center of Eurasia, claiming the lives of at least 150 million people. Since then, smaller spacequakes plague the world on an irregular basis. Shido Itsuka, a seemingly ordinary high schooler comes across a mysterious girl at the ground zero of a spacequake and learns she is one of the "Spirits" who are the real cause of the spacequakes that occur when they manifest themselves in the world. He is recruited to make use of his mysterious ability to seal the Spirits' powers thus stopping them from being a threat to mankind. However, there is a catch: to seal a Spirit's power, he must make her fall in love with him and kiss him.

Small for his age, Yukinari has been bullied and abused by girls all his life. Now in high school, he has developed a rare condition: whenever girls touch him, or even come close, he breaks out in hives. Imagine his surprise, when he is suddenly transported to the city of Seiren on a mystic world invisibly orbiting the Earth, and populated with vast numbers of women and very few men. Fortunately, he has a new friend, Miharu-chan, whose touch inexplicably doesn't affect him.

Miaka, a junior high school student in Tokyo, has normal problems: fights with her mom, entrance exams, and deciding where she's going to go eat with her friends. But when she finds a mysterious book in the library, her life is changed forever when she and her best friend are transported inside!

Rather than take a more sensible approach to salvaging his grades in time for graduation, Alto summons a bit of otherworldly help. Only after does he learn he’s bound the legendary she-devil Vermeil into service as his familiar!

On Seiran Island, secret society NLNS is united by Junnosuke Tachibana, who is determined to crush a law. They have found a benefactor, an unknown rich man, who offers them a secret base and cash. Their mission is to locate a mysterious girl and stop the law, keeping the SHO off their trail.

Koyomi Araragi, a high school student, finds himself constantly encountering girls afflicted by supernatural "oddities." He dedicates himself to helping them, often with the aid of the eccentric specialist Meme Oshino. Each arc talks about a different girl's unique struggle and the mysterious cause of their affliction. The series explores themes of adolescence, personal growth, and the complexities of human relationships. It's known for its witty dialogue, stylistic animation, and unique narrative structure.