Tatiana is the emotionally soft and gentle person with a witty and snarky side. She is known to be quite gullible at times and is quick to getting embarrassed but can always stay optimistic even in the toughest of situations. Tatiana is honest, forgiving and a good listener who will put other people's thoughts and well-being before her own. She is willing to sacrifice herself or any personal possessions she holds most valuable to her for the sake of her loved ones. She can also be very curious, alert, observant of her surroundings, and willing to learn new things. Though stubborn and outspoken towards people, deep down Tatiana is very hesitant in saying or doing stuff on her own unless encouraged or supported by her friends, family, or significant other (or if the situation involves them as well) then she would do it without second thought.

She has a huge soft spot towards young children and animals, especially towards cats, birds, and her pet fire salamander named Agni (who she also nicknamed "Mr. Slimy" when she was younger). Tatiana cannot resist the urge of wanting to pet, cuddle, play or observe any animal whenever she sees or hears one nearby. Due to her caring yet stubborn determination of wanting to be there for others, she also tends to display affection towards the "moody, angsty, cold-hearted" bastard type of people with a secret emotional side. Additionally, Tatiana can be very affectionate through her actions such as hugging and hand holding while also can sometimes come off as feeling a bit jealous when regarding relationships.

Tatiana loved to sing when she was young, it was her most favorite hobby of all (asides from dancing). Asides from sneaking out of the palace to spend time with any stray animal she finds, singing was the one thing that made her feel happy and also helped her cope from feeling alone. Tatiana loved singing to others and hearing other people's singing. She also had a habit of joining in and singing along with them to whatever song she hears, regardless if she knows it or not. So when she got teased and humiliated by some of her insufferable siblings in front of a large crowd for having a "terrible" singing voice, it made Tatiana feel ashamed and heartbroken, thus causing her to lose her passion and believe she isn't good at singing.