Gigant is a provocative sci-fi romance manga that blends giant heroine spectacle with emotional intimacy and surreal technology, set in a near-future world where virtual reality, social isolation, and media obsession dominate everyday life, following Rei Yokoyamada, a lonely high school student whose chance encounter with Papico, an enigmatic adult actress, pulls him into a strange relationship that escalates into global chaos when Papico gains the power to grow to colossal size and battle monstrous threats threatening humanity, unfolding through a mix of erotic tension, large-scale destruction, and surprisingly sincere emotional beats that explore loneliness, desire, escapism, and human connection in a hyper-digital age, delivered with bold fanservice, cinematic action, and social commentary that make it both controversial and distinctive, standing out as a unique entry in modern seinen manga for readers drawn to unconventional storytelling and boundary-pushing themes, also known as Gigant manga, GIGANT, ギガント, Okamoto Lynn manga, giant girl manga, ecchi sci-fi manga, romance giant heroine manga, and seinen science fiction manga.