I am finding this one to be delightful. It doesn't appear deep at first but if you actually look at what the characters are saying and thinking, they clearly have their own perspectives and motivations that set this apart from the usual garbage we get in isekai.
The main character is a pretty simple guy and doesn't need all the power or resources that usually turn this sort of story into a powercreep mess where they take on entire armies solo or some bs. He literally just needs people to ask him to solve a problem and he can have fun figuring out how to do it within the bounds of what his skillset can do. Even better when he does take steps to improve his capabilities.
The female lead has a confidence problem, which is normally concerning for these sorts of things because it usually involves a lot of simping for MC. There is an element of her having an inferiority complex regarding his OP abilities but it's a little refreshing that this is a genuine character trait that goes back to her 'genetics' (if inherited class and quality are indeed genetic) and informs the kind of person she has always been and how she interacts with characters OTHER than the MC. More importantly, we have hope that she will be able to find her own way rather than 100% depending on MC to develop a sense of self-worth. Her desire to be with him isn't based on a complete dependence on him, but that they both get joy and value from helping and being around eachother.
Putting together all the other characters, I am relatively satisfied with how their motivations tie into their response and interactions with MC and FL. They all have their own relationships and it doesn't get completely overshadowed by how insane MC's abilities are for what they're used to. I hesitate to use the word 'realistic' but the politics and self-interest on display make at least as much sense as the people who have the usual 'make the world a better place' mentality that tends to drown out these sorts of stories where money and resources are no object.
