Genuinely an amazing story. I do agree that some scenes could have been handled with better sex-images - like Luna helping leo early on, instead of just text have some actual CGs - but the ones that are there are great and I love the character designs. I love the 'thoughts' system.
I especially like the running theme where the temptresses develop genuine feelings for the MC! In the first one and this one. Makes it a bit more bittersweet then bitter, and it hints that the temptress isn't completely gone. Even the succubus in the first one genuinely falls for the MC and ends up retiring to spend eternity in a private villa with him.
Massive difference in quality for the better, and I hope for the third one, we can have a more advanced relationship system - more endings taking into account the different routes. Maybe have routes where you save the temptress and cuck the demon?Have the protag for the third one be a bit more powerful and not as soft and weak. Makes the NTR spicier if the cuck is a genuine powerful/good man.