Are there any recommendations for a Doujinshi novel adaptation of 'The Great Battle of the Date?'

Yes,"Traveler in the Dimensional Space","Mixed Man: Light and Dark Twin","Tokizaki Kozo's Plane Journey","Challenge to the Dimensional Academy","Mixed Man: Starting from Snatching Girls from Wuhe Shidao", and "The Predator of the Female Lead of the Livestream" were all doujinshi adapted novels about dating battles. Personally, I prefer "Dimensional Traveler" and "Tokizaki Kozo's Plane Journey." They have elements of dating battles and also integrate settings from other worlds. They are very interesting. I hope you like my recommendation. Muah ~