Going to say it's probably not meant to be Sephiroth, but Sephirot, as in the Kabbalah Sephirot. Seeing as two of the continents were named Hod and Chesed. As well as the whole tree of life thing.
Please please PLEASE, if you're going to translate, at least do it Japanese to English. Don't translate a translation, that almost always make it impossible to understand.
Man, does the author really believe that her shitty and perverted personality is meant to be funny or something? It's not, it's just bad, like really bad.
There is absolutely no way to make the "perverted man-hating lesbian" character type likable in any way. Literally every word out her mouth has either been creepy lusting after the princess or vitriol directed at the MC, nothing she could possibly do now would redeem her character.
How quickly the Princess forgets what he did to her in front of like, the entire population of the city, if she thinks she'll have an easy time of this.