Review Detail of rukasu in Reincarnated as a Son of the Sword Saint and the Sage

So far, chapter 9, I'm enjoying it, the writing is good, it has good ideas, he knew how to build the world, but has failed miserably so far to give charisma to other characters, his 2 mothers and his sister, I hope it improves and that it shows a more affectionate relationship between them. But it's a pity that this novel isn't R18/SMUT, maybe the actor doesn't put in some scenes? RS, well I'm at the beginning so I can't say much more.