Tachi is a Filipino-American girl with thick chocolate hair and big brown eyes. She is around 144 cm in height and with an averaged-size built. Some Asian features that can be distinguished right away would be her honey-colored complexion and small button nose.

For someone as young as her age, she is quite the mature kid already having grown up in a household full of adults. She is quite the observant little girl who is curious about the world and everything it has to offer. An intellectual too, since she tends to hang around her father's study and read everything she can get her hands on. The only character flaw that she seemed to have is her tendency to be strongly opinionated, especially on matters that do not concern her (like, adult stuff) but this was only because she did not have any childhood friends to play with. This also meant that she had a superiority complex, with both her blood status and her parents being part in the elite class of the wizarding community.

Her Filipino mother migrated to England when she was still very young and that was how she met Tachi's dad. They were a loving family, though strict at times because of the high position his dad has in the wizarding world. Her mother is quite the socialite too, having been married to a fellow pureblood. However, this meant that her parents were always away and left Tachi to tend to herself or in their House Elf's care. They currently reside in Wiltshire, England living a very comfortable life.

Tachi's first instance of magic was when she accidentally summoned a thick heavy book from her family's library, right at the very top of the shelf when she was 10 years old, a little late actually because she was starting to think that she was born without magic. She couldn't really understand what happened at first because she knew she needed a wand to conjure magic and was very eager to ask her parents about it, to which her parents were too busy to explain and she just shrugged it off as accidental magic, after doing her research (and asking their house-elves).