Orc Eroica, Vol. 4 (light novel)

In "Doin’ It By the Book," Bash and Zell encounter a messenger of love and peace who provides them with a magazine on winning over beastkin women, leading to unexpected romantic pursuits. Their journey quickly becomes more complicated and exciting as they attract the attention of beastkin princess Silviana and a charming succubus, setting the stage for humorous and enchanting adventures.