An Ōhara is a secondary character in the second season of the anime Asura Cryin'. She is one of the few close friends of the protagonist, Tomoharu Natsume, whom she affectionately calls by the nickname Tomo. An is a student at the same academy as Tomoharu, and her daily life is largely centered on her friendships and school activities. She is known for being assertive and somewhat outspoken, particularly regarding her desire for Tomoharu to spend time with her. For instance, she did not like the idea of Tomoharu joining the Science Club because she wanted him to follow her and join a different club instead.

An's core motivation is her deep, unspoken romantic feelings for Tomoharu. It is implicated that she has a crush on him but struggles to express her true feelings directly, a trait that defines her personal arc. Her role in the story is primarily tied to the complex, multi-world narrative. In the events of the First World, she and Tomoharu grow much closer after he joins the same club as her. In this world, she gathers the courage to confess her feelings to him and asks him to accompany her to a Christmas party, hoping for a private moment just between the two of them. However, this confession goes unanswered when a critical accident forces the First World's Tomoharu to become a handler for a demon, leading him to leave for the Second World and ultimately die there.

This unresolved romantic tension becomes the central point of An's key relationships, especially with the Tomoharu from the Second World who arrives in her reality. She confronts this different version of Tomoharu, demanding an answer to her confession before Christmas Eve ends. She expresses her fear that if she does not ask now, she may never get an answer, a fear that proves tragically prescient. She is right that she will not see her Tomoharu again, as the original Tomoharu from her world has perished, and the visitor must return to his own dimension. This situation forces both characters to confront a painful truth. The visiting Tomoharu, realizing he is not the person she fell in love with, feels compelled to respond in his counterpart's place. When he attempts to apologize, An insists that he reject her properly instead, leading him to introduce his own girlfriend, Kanade, as his answer. This moment, which causes An to run away crying, is portrayed as the visiting Tomoharu's way of giving her the closure the original Tomoharu never could, implying he has his own feelings for her and recognizes that her counterpart in the Second World also cares for him.

Throughout her development, An transforms from a girl who passively harbors a crush into someone who actively seeks a resolution, even if it leads to heartbreak. Her story is one of unrequited love complicated by the sci-fi elements of parallel worlds, highlighting the emotional cost of the series' central conflicts. Regarding notable abilities, no information is available about An possessing any special powers or combat skills; her significance is entirely rooted in her personal relationships and emotional journey.