4 1/2 stars.
love the simplicity, the intriguing bars filling up, the satisfaction of seeing your numbers increase extremely fast. 
Only problem I have is that it can get super difficult to level some things later on- specifically later millitary branches and magic stuff, as well as getting super high numbers on skills- can be a bit of a problem; Though, if I had mroe patience and would wait out the grind while doing other things I wouldn't be in that situation... anyway...
Lovely game to play while listening to an audio book or to AFK grind while writing an essay, doing a test, doing the work your boss told you to do.. , ect.
A bit of story or some quests would be nice (unless that's already unlockable VIA rebirths.....didn't think of that.) to keep the game a bit more of active play. Special events could be cool too, seeing as there's space beneath the stats pannel (the one with age, income.. so on..) it'd be cool to see some news regarding 'a mysterious young man reaches general by the age of 14' so on. Like what cookie clicker has at the top of the screen.

Overall, Love you game. It's a 5 star game, but due to my impatience it's a 4 1/2 from my ADHD and my need to challenge myself.