Hitoribocchi no Chikyuu Shinryaku

For Kouichi, entering high school represents far more than just a new academic chapter. His singular ambition has always been to carry on his grandfather’s legacy by helping run the family coffee shop. He approaches his first day of classes with this simple, earnest goal in mind, entirely unaware that his ordinary life is about to be shattered by an encounter beyond imagination. On that very first day, his routine is abruptly interrupted by the appearance of a mysterious girl wearing a deeply unsettling mask. Without hesitation, she delivers a chilling declaration: she has come to claim his life. As Kouichi struggles to process her words, she reveals an even more astonishing truth. The heart beating steadily inside his chest does not belong to him—it is hers. She identifies herself as an extraterrestrial invader dispatched to conquer Earth, and she insists that reclaiming her stolen heart is essential to her mission. Suddenly thrust into a bizarre and terrifying conflict, Kouichi finds himself at the center of a planetary invasion. Bound to this masked alien by the very organ keeping him alive, he must navigate a desperate struggle for survival while trying to protect both his own existence and the quiet future he had always envisioned.