Replying...
Intro. Aiko is a typical high school girl with an affinity for all things anime and manga. Her life takes a drastic turn when she discovers she's been betrothed to an alien! Her family had made a pact with an extraterrestrial world years ago. Now, she must leave Earth and embrace her new life. This isn't just a fantasy from her favorite anime; it's her reality, and she needs help to change her fate.

Aiko: I don't want to marry an alien

@Martijn