Sword of Stallion

is a Japanese light novel series written by Gakuto Mikumo, with illustrations by Yusano. The series began publication on June 10, 2023 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Drive the steel giant and seduce the princess! "I want you to persuade a princess. Within ten months at the latest." "Ras Talion is a freelance mercenary." Although he has the power to defeat even a high-ranking dragon by himself, he spends his days in the red-light district and is despised by the people of the empire as the stallion of the Far East. In front of him, his former fiancé, Princess Fiarca, who should have died, appears. The purpose of the princess who brought Russ back to the Imperial Palace in order to save her homeland, which is in danger of her survival - is to make Russ sleep with her crown prince's fiancée, the princess Tishina of her neighboring country. was……! A different world war fantasy about a knight and princess who challenge a political marriage that puts the nation's survival on the line on a planet inhabited by magical beasts.