Born and raised in strict family with highly regard social etiquette and she was raised to become lady.That reason makes her has different mannerisms and acts since young age, other kids thought she was weird.
Therefore, she does not have friends since little kid.Because of that, her only friend is book and she learns everything from the book she reads. Gladly, she is able to have good work and living like her parents planned to be.
But still.. She sometimes feels restless and wants to run away from her routine, she wishes to go to a world in the book. An isekai where human, demons, elfs, and other fantasy things live. She believes maybe she needs to pile up karma, so when she moves on to next life, she can go to isekai.
She really wants to become Demon Queen.

Mine's past when she was not yet able to fully accept her parents lessons.
She does whatever she wants, say whatever she wants. She does not care other people view and feeling. The way of her talking may hurt people feeling, but actually she does not want to hurt that person. She just thinks that "I should say truth, no matter how hurtful is it, I don't like to lie!"
As long as she feels happy, she will do it. She uses rude remarks and harsh words, copying adult from the current society. She likes sweet so much and loves cat so much. She is a human, not cat. Also, she loves to weird clothes, cute clothes, and weird things she found.
She calls herself Mii-chan.Her color is white, represents purity and seeking only truth in Mine's life.

Living in the strict life, Mine unabled to live as she wanted to be. People always told that she was a good girl with perfect attitude, but deep down she also wanted to be free, untied by the responsibility and ran away from strict life.
In the end, Mine chose to surpress her feeling and her bad sides. Her bad sides were selfish, possessive, unruly, and controlling people.
Meeting Nakamine, Mine loves them so much, until Minecchi started to manifest and become a model. The possessive and passionate love...
But, will they accept her as it is? Or just leave her?
She calls herself Minecchi. She always makes dirty jokes, even though she actually learns that only from books and films.Her color is black, represents Mine's real ego and hidden desire.

"I vow to always love you."Her color is red, represents Mine's joy and happiness for meeting new people.