A 45-year-old unremarkable salaryman is reincarnated in another world?! A man who has been living a gray life with no hobbies, divorced, and no lover, is reborn into the house of a border knight and begins to fully utilize his abilities. Can he lead a tumultuous and dreamy life in his second life in this new world? --- This work is a side story to the 'Trinitas Series: Trinitas Mundus ~The Tale of Holy Knight Ray~'. --- Please note that as of Chapter 5, the content is quite different from what the title suggests. Also, please be aware that the protagonist will have multiple wives, so those who do not like such settings should be cautious. --- This work has been published by TO Books. The main story 'Trinitas Mundus ~The Tale of Holy Knight Ray~' has also been published as a book. Additionally, 'Dwarf Life: A Dreamy Life in Another World's Alcohol Culture' will be included in both works. --- This work has been adapted into a manga by TO Books' Comic Corona.