"I've Become an Omega Today" is a manga series that explores themes of identity, societal roles, and personal growth within the framework of an omegaverse setting. The story centers on a young man who unexpectedly transitions into an omega, a role typically associated with submissiveness and caregiving in this fictional universe. This transformation disrupts his life, as he must navigate the challenges of his new identity while confronting societal expectations and prejudices tied to secondary genders.

The protagonist, previously living an ordinary life, finds himself grappling with the physical and emotional changes that come with becoming an omega. His relationships with those around him, including friends, family, and potential romantic interests, are tested as they react to his new status. The narrative delves into the complexities of these interactions, highlighting the tension between personal desires and societal norms. Key characters include a supportive friend who helps him adjust, a love interest whose own secondary gender complicates their dynamic, and antagonists who embody the societal pressures and biases against omegas.

As the story progresses, the protagonist begins to challenge the rigid hierarchy of the omegaverse, questioning the assumptions and limitations placed on individuals based on their secondary gender. The plot explores themes of self-acceptance, resilience, and the pursuit of autonomy, as the protagonist seeks to redefine his place in a world that often marginalizes omegas. The manga balances moments of introspection with interpersonal drama, creating a narrative that is both emotionally engaging and thought-provoking. Through its exploration of identity and societal structures, "I've Become an Omega Today" offers a nuanced portrayal of the struggles and triumphs of its characters.