Gun Ota ga Maho Sekai ni Tensei Shitara, Gendai Heiki de Guntai Harem Tsukucchaimashita!? 9 (Fujimi Fantasia Bunko) [Light Novel]

[Machine Translation] Chris' father, Dan, who had been missing during the Brad family's family feud, has been found! Guided by Gigi, who says he found him, the group heads for the Demon Continent, where the Demon King is said to sleep. However, Dan, who was reunited with Chris' father deep within the continent, refuses to return to Brad's house. He is unable to give any reason for his refusal to return, saying that he cannot tell Lute and the others because it would harm them if he were to reveal it. The only way to bring Dan back is.... "Master, let's shake your muscles! The only way to bring Dan back is to overcome him with the power they have gained through their many hardships and show him that they are no longer just there to protect him! Break through the great father-in-law who once could not be overcome, head-on with the bond of husband and wife and their new weapons!

ブラッド家のお家騒動で行方不明となっていたクリスの父、ダンが発見された!彼を見つけたというギギの案内で、一同は魔王が眠るとされる魔物大陸に向かう。しかし大陸奥地で再会したダンは、ブラッド家へ帰ることを拒否。帰還を拒むその理由も、明かせばリュートたちに害が及ぶので語れないと、とりつく島もない。そんなダンを連れ戻す唯一の方法は...。「旦那様、筋肉を震わせましょう!」数多の修羅場を経て得た力でダンに打ち勝ち、自分たちがもう守られるだけの存在ではないと示すこと!かつては越えられなかった偉大な義父を、夫婦の絆と新兵器で正面突破せよ!