Like what? Self-improvement is the best long-term for his life and helping his family, because it will have lasting effects even if he loses the gadget tomorrow.
In this case the guy did everything right, sure - the complaints are more about the protagonists of these stories being bland and featureless on purpose.
Would be way more entertaining if she did and she just wants to, in her own way, for them to get there naturally.
I will never not like that the main character's nick is Kuroking and the one that came up with it is the dad.