"Ore wo Suki nano wa Omae Dake ka yo" centers on Jiro Amatsuka, a high school student who outwardly presents himself as a kind and selfless individual, earning him the admiration of his peers. However, Jiro harbors a cynical and manipulative side, often using his facade to gain favor and avoid conflict. His life takes a complicated turn when he discovers that two of his closest friends, Sumireko Sanshokuin and Aoi Hinata, have romantic feelings for him. Sumireko, the class president, is a diligent and composed girl who secretly writes a romance novel under a pen name, while Aoi, a cheerful and athletic classmate, is Jiro's childhood friend.

The situation grows more convoluted when Jiro learns that both girls are actually in love with his best friend, Taiyo Oga, a handsome and popular boy who is oblivious to their feelings. To protect his own image and avoid confrontation, Jiro decides to help Sumireko and Aoi win Taiyo's affection, all while maintaining his carefully crafted persona. However, his plans are further complicated by the arrival of Cosmos, a mysterious and flirtatious girl who claims to have feelings for Jiro, and Pansy, a quiet and observant classmate who seems to see through his facade.

As the story progresses, Jiro finds himself entangled in a web of misunderstandings, hidden motives, and shifting emotions. Sumireko and Aoi's attempts to win Taiyo's heart often backfire, leading to awkward and humorous situations. Meanwhile, Cosmos and Pansy's presence adds layers of intrigue, as their true intentions remain unclear. Jiro's dual nature is repeatedly tested as he navigates the complexities of friendship, love, and self-preservation, often resorting to his manipulative tendencies to maintain control over the situation.

The narrative explores themes of identity, deception, and the consequences of one's actions, as Jiro's carefully constructed world begins to unravel. The interactions between the characters reveal their vulnerabilities and insecurities, challenging their perceptions of love and relationships. The story balances comedic moments with dramatic tension, creating a dynamic and engaging plot that keeps readers invested in the characters' evolving dynamics.