i got you, 1. she wanted a Demon butler like Sebastian from black butler, or maybe she was stupid enough to think she would get three wishes from him or some thing like a gene Naomi is so stupid some times but to be fair have you seen yumiku he's like a twig.
2. the last names is another thing i put Naomi's last name as Rose because a Naomi is a type of Rose kind of like a play on words? and Jorden's last name being Christian because he is a christian not to religious but still prays and believes Yumiku has a last name as well but he only uses it when hes in human form since demons dont have last names this part was not addressed in the story but when naomi signed yumiku up for school she had to make up a fake last name for him so she put his last name as Demos its suppossed to sound like demon but if any one asks he says its a greek name,
and last but not least
3. yumiku is a demon in a world he doesnt understand and he was lost he knew that if naomi tried to do some thing again then he could cast a spell or some thing i dont know he is just stupid i guess lol-
