This is one of the few series that I would prefer not to have romance. Ray and the other spirits are more than enough. Though it would be too much like Pokemon if she just trained, got stronger and became one of the strongest people in the world. But I love Ray so much! Their banter is so great! Now I can see why she got Ray because they're both lazy, loveable brats! I think her personality is so refreshing. I'm totally the same with "I'll do it if I want to and I won't if I don't want to". What's wrong with wanting to be rich without working hard?
BTW. I think it's weird that with these isakai stories, people add ages up and then they say that they aren't acting their age. I don't think living a life for 17yrs and 10 yrs makes a person mentally a 27 year old. Usually, they would have their own place, significant other, have a job, adult responsibilities and etc. For example, if a person repeats 6th grade twice, does that person have 7th grade academics down? no.