Goblin Reijou to Tensei Kizoku ga Shiawase ni Naru MadeNewゴブリン令嬢と転生貴族が幸せになるまで; ゴブリン令嬢と転生貴族が幸せになるまで　婚約者の彼女のための前世知識の上手な使い方; The Reincarnator and the Goblin Maiden's Happily Ever After: Using a Past Life to Keep a Joyful Wife

"I will do my best to create a happy family with my business acumen, magic tools, and previous life knowledge... cheats!" Gino is a lowly aristocrat who secretly makes use of his past life knowledge to manage a trading company. His dream is to have a companion to share his old age with, but because he was not popular with women in his previous life, he has a strong dislike for women and things don't go well. Then he is matched with a young lady who is called a "goblin" because of her peculiar appearance. Gino, who does not care for her looks, is deeply moved by her gentle personality and asks her to marry him! Gino then makes up his mind. Using his business acumen, magical tools, and knowledge of his previous life, all the cheats he has hidden away, the two of them will be happy together! --- Ginorious Adolni has but one goal after reincarnating into a new world—find and marry someone he can grow old with. After living for close to a century without ever having a single relationship due to his hideous appearance, Ginorious wishes for companionship from the depths of his heart. The opportunity presents itself one day when he receives an offer to marry the daughter of the premier duke. It’s a shocking proposal for the son of a simple viscount, until he learns that all their attempts to arrange courtships with higher nobles have already failed, and for one simple reason: the daughter’s appearance, which has earned her the epithet of the Goblin Maiden. But Ginorious sees his past self in her, and soon learns that she has a genuinely beautiful soul. Ginorious resolves to use everything at his disposal, including knowledge from his past life, to make her happy. (J-Novel)