A little clueless to things that go on in the crazy home she lives in, strangely enough Trina-chan fits perfectly with the odd group. She obviously likes to toy with her younger brother about his "relationships" with other people such as Acht. She's also, if you can believe it or not, good friends with ice bitch--er--Rena. For awhile she went with the same belief her mother had that her father would come 'home' one day and everything would be ok again. She soon realized that this was obviously never going to happen and Ariel was just trying to keep herself and Quat in a false hope. Of course you must also realize she practically watched the father she considered to be more of a brother to her die at the hands of Koubashii before she even turned four years old.