Masu

https://www.wattpad.com/story/374459218?utm_source=android&utm_medium=link&utm_content=story_info&wp_page=story_details_button&wp_uname=lazy_reader_2306
          
          A book very similar to "their wife"
          
          Give it a try 
          
          They've started to update only today. 
          
          Starting chapters look very promising