Onee Danshi, Hajimemasu.

Toru Takahashi is an ordinary high school boy who has fallen deeply in love with his classmate, Yuri Otogane. However, he faces a seemingly insurmountable obstacle: Yuri has absolutely no interest in boys. Rather than abandoning his feelings or accepting defeat, Toru resolves to do whatever it takes to capture her heart. He decides that the only way to reach her is by completely transforming himself and embracing his feminine side to align with her preferences. To achieve this dramatic personal reinvention, Toru turns to someone uniquely qualified for the task. He enlists the help of his friend Toranosuke Sagara, a naturally effeminate young man whose refined sense of style and beauty far surpasses his own. Under Toranosuke’s dedicated guidance, Toru begins an unconventional journey of self-improvement, learning how to cultivate a delicate aesthetic and present himself in an entirely new light. As he steps outside the boundaries of traditional masculinity, Toru must navigate the challenges of his transformation while hoping that his devotion will ultimately prove enough to win over the girl he loves.