I enjoyed doing Xiaoyu headcanon in the big 2025 there's more
Heihachi tried to brainwash her, when she asked him about Jin whereabouts (she obviously will notice he was gone they lived together after all too) he told her: "Xiaoyu, he didn't even bother telling you his FRIEND where was he going to go after tournament you his friend you think is even worthy to ask where he is? he didn't consider you may be worried about him apparently his ungrateful ass never care it seems. Think about it next time you ask me about his whereabouts". She didn't trust him but didn't insist...
Several weeks after Jin disappeared she decided to pack her stuff and move with Miharu for a while she didn't want to suffer anymore by dearest friend shared memories and, Heihachi order about erasing everything about Jin in Mishima State; after receiving mysterious mail she decided to stay until she was 18 as a child is afraid of monsters in the closet, she was afraid of going back to Mishima State for her staying away for a while was the best until she knows the truth behind mysterious mail.
She felt guilty Jin fell into darkness during sixth tournament nefarious events she blamed herself she felt weak for not even be able to prevent his downfall early but she didn't. She failed keeping her friends close to her she lost contact with her best friend Miharu by assisting tournaments and, let Jin fell in darkness her own guilty made her promise she would do everything in her hands to change his mind and downfall.
Reason she keep searching for him it's because she knows more he distance himself from people more he'll fall in the darkness of solitude and despair she didn't want him to lose himself.
:D













