Tugikuru Corp. & Hiroaki Ogura 
The Saga of Lioncourt: Volume 3 [EPUB ebook] 

What do we fight for? Whom do we fight for? Every man has his reasons.

41-year-old desk jockey Tadashi Tanaka is reborn as Varian de Lioncourt in another world. Yet his second life as a count’s son can be called anything but ordinary. When Count Lioncourt is away on a royal decree, his longtime enemy Bachelard takes the opportunity to instigate a surprise attack on the Lioncourt territory. At an overwhelming disadvantage, Varian utilizes every means at his disposal to win his first battle and subjugate the enemy forces!