I want a novel about a male lead that’s been reincarnated, but has a cold/ruthless personality. I also want them to have lived a very long time and act there age, not be reborn and then act like a child when they have years of experience but If there not reincarnated, I can still read it -NO HAREMS -OP -NO BL
She Professed Herself The Pupil Of The Wiseman is the only one I can think of where the MC keeps acting like an old man even while being in the body of a young girl. And yea, its gender bender if you were wondering. I think its there for the comedic value of a young girl acting like an old man.