Katainaka no Ossan, Kensei ni Naru 3 (SQEX Novel) [Light Novel]

[Machine Translation] It seems that the knight corps of both countries will be guarding the royal family of the Kingdom of Reveris and the neighboring country, Sphend Yardvania, for their friendship event that is about to begin. And of course, Aleusia, the leader of the knight order, told me that ( I thought it would be a good opportunity to introduce my teacher to you. ) The old man was beginning to get used to his big role, but when he heard that he was indeed "royalty," he was in agony, and the knight order from the other country had arrived. ( Your beloved disciple, Rose Marbleheart~ ) The deputy commander of the Sphend Yardvania is also a former disciple of mine! Without time to be surprised at their reunion, he is assigned to guard the royal family together with Aleusia Rose, but behind them, a black shadow is gradually beginning to move toward the royal family... An old man from the countryside takes on the most important mission of his life! The third installment of the popular fantasy of an up-and-coming old man!

まもなく始まるレベリス王国と隣国スフェンドヤードバニアの王族の友好行事に向けて、両国の騎士団が警護に当たるらしい。そして当然騎士団長アリューシアからは、「先生をご紹介する、良い機会かと」そろそろ大役にも慣れ始めたおっさんだが、さすがに『王族』と聞いて悶々するなか、相手国の騎士団が到着したようで―「うふふ。貴方の愛弟子、ロゼ・マーブルハートですよ～」スフェンドヤードバニアの副団長もかつての弟子!?再会に驚く間もなくアリューシア・ロゼと共に王族護衛の任に就くが、その背後では王族を狙う黒い影が徐々に動き始めていて―。片田舎のおっさん、人生最大の超重要任務に挑む!!大人気成り上がりおっさんファンタジー、第3弾!