Mari is a kind and gentle young female. She can be a mischievous person at times. Mari is known to be a perfectionist as well. One day, she had a fight with her younger brother. Which caused in her death, Sunny killing his sister on accident.
She is shown to be forgiving of him, even though he had been the reason for her death. This may imply Mari is a very forgiving person. She was shown to be an important person to a lot of people. She loved playing the piano.
