Ouji to Majou to Himegime has the feeling of an early work, even though it isn't (I checked, the author has plenty other previously published works). The story feels aimless for the first few chapters, like the author never quite decided between slice of life with fantasy elements or actual fantasy, then goes straight to slice of life, only without that feeling that every character has a life of their own when off-camera, which is usually what makes the best slice of life stories.
Which brings me to the characters, a hard subject for me because I found nothing interesting in most of them. There is an obvious "getting to know you" chapter for each of the boys/princesses and whatever shows up there are the only character traits of theirs that will ever be brought up in other chapters: they're all pretty boys with angsty family backgrounds, a special quirk related to their past life and no worries with having female memories. No one has any hidden strengths and, worse, no one has any hidden weaknesses. It's incredibly boring, like the characters were created by filling a form and never allowed to outgrow those initial ideas.
Also, this is a story featuring automatic love. As in, there is no development of feelings, all the guys automatically love her because past life. This is also terribly boring.
The art is rough. The faces are not very expressive, so I had some trouble guessing who was saying what; some of the main characters are so similar in design that it's hard to tell them apart; the backgrounds are very sparse, so it always seems like everyone is just floating around in nothingness (the author goes to incredible lengths in order to avoid drawing background); the narrative is terrible, with multiple moments where I had to play "guess what is the next line" in order to find the next panel; the screentones are always similar, which gives the pages a muddy look when you have uniforms + brown hair + effects.
Saying it all in a row makes it seem like a terrible manga, but it's just unimpressive. Terrible usually has some kind of style, this is just... Meh.
As you can see, I dropped it after reading 15 chapters. This is usually enough for even a slice of life manga to find its feet. Sadly, it wasn't the case for this one.
