“Why am I getting heartthrob!?” The main character is reincarnated as Satou, an extra character in the world of his favorite shoujo manga. He was able to witness with his own eyes the moment his favorite characters became a couple. However, he witnesses the scene where his favorite character, Shirakawa Fuuma, is rejected by the heroine. Sato is determined to return the story to the way it was and make his favorite character happy! But as they spend time together, he finds himself falling for him... This is a heart-warming love story between a young man who is reincarnated in his favorite girls' manga and the main character of that manga!