Growing fortune - but not economic

A strange letter is sent to your person and, as you read, you realize it is from two estranged family members you never knew existed. Due to the nature of the relations, you are the only fitting to inherit the wealth but it all comes at a cost. Miranda is a peculiar child who is so, so alone and afraid. Will you go on with your life and leave your cousin be, or will you help her back up on her feet? This one took a lot of time. Content warning: Mention of death.