Sekai de Ichiban Aishiteru
セカイでいちばんアイしてる
A high school student produces strong pheromones that cause intense reactions in those around him. Female classmates experience overwhelming attraction, while male peers feel threatened, leaving him isolated and friendless. One day, he meets an unusual feline-like being, which initially appears to be unaffected by his pheromones. However, this creature is later revealed to be an otherworldly entity. The story follows the student's interactions with this extraterrestrial being, who has the ability to change form.