Shounen no Hatsukoi wa Bishoujo♂ deshita.

After a decade apart, Tougo Ushiwaka finally has the chance to reunite with Ren Ryuugasaki, his cherished childhood friend and the person who holds the title of his very first love. For ten long years, Ushiwaka carried fond memories of the beautiful girl he once knew, holding onto the warmth of those early feelings as they eventually crossed paths again. The reunion promises to be a heartwarming reconnection between two people who shared a significant bond during their formative years. However, the joyous occasion quickly takes an unexpected turn when Ushiwaka discovers a startling truth about his beloved childhood companion. The person standing before him is not the girl from his memories, but rather a young man who simply possesses a deep fondness for cross-dressing. This revelation shatters Ushiwaka's long-held perception, leaving him deeply traumatized and struggling to process the reality of the situation. Now forced to reconcile his enduring feelings with this shocking twist of fate, Ushiwaka finds himself caught in a profound emotional dilemma. He must navigate the complex space between his nostalgic affection for his first love and the bewildering truth of Ren's identity, setting the stage for a story filled with confusion, comedic misunderstandings, and the challenge of accepting someone exactly as they are.