Nanakawaichan
The only way this story can become genuinely good (IMO), is if ethan's physique changes to become more like damian's (the hair and eyes can stay diff.), and his personality becomes more similar. Otherwise this is just 2 different people. Like damian sleeping with ethan's crush would be hella weird and borderline cucking. That was just a tiny rant, will probably continue to read anyway.
Question. With Ethan stats various stats rising will he experience improvements in his base form too? And now that he knows heāll have to fight stronger demons will he learn more combat related powers and skills? How long do you think heāll keep his current occupation? After all heās only Damian for part of the day with the systems help he can enter any university or master the skills for any job just raise his int. And lastly when do you think heāll stop reacting to situations and accept what he wants who he wants to be and how he wants to live. You know accepting his desires and taking initiative.