Sure thing~! Lily will use her current character in a Lancer TTRPG game as an example~!
Trance Ahn is a young Union Cavarly Officer, a mech pilot by any other name. Despite losing her birth family in a pirate raid, she was raised with love and care by her adopted family, the mech-crew that rescued her from the wreckage. Over the 20 years she spent with that crew, she internalised a lot of their morals, as well as an impossibly high standard of performance in the field, before leaving to finish her training and get an assignment to a squad of her own.
Trance generally has a positive outlook, at least when momentum is in her favour. She's confident in her abilities, and is particularly driven to defend others more than defeat her enemies. However this optimistic outlook is more fragile that it seems, as a series of failures and pyrrhic victories has cast doubts on if she's able to perform at the high level she holds herself to.
When things are going right, Trance is always looking to pass on positivity to her squadmates, and when things are going wrong, she enters a spiral of self-blame and self-doubt. Trance also has a few bad habits, she's prone to hiding injuries she believes she can work through, she mutters to machines when she's in thought as if they could talk back, and she's prone to carrying around her big sister's helmet (adopted/deceased) and has uneccesarily put herself in harms way in order to protect it from damage.
Hope this is enough detail~!