all i remember is it’s a full color manga (?) contain hentai of course, the art is similar with takeda hiromitsu art style, the mc is a pervert, he trains under a head knight (woman), after a while the head knight get horny everytime the two of them train together, the mc fuck the assistant of the head knight (short blue hair) who wants to protect the head knight from the sex beast (mc) but the blue hair girl starting to enjoy it, he fuck her in the ass iirc