Princess’s Happily-ever-after Marriage

Princess’s Happily-ever-after Marriage Manhua is also known: 王妃的婚后指南. Princess’s Happily-ever-after Marriage is released in 2018 and you can read it on the website SAWAMICS.COM
– Summary :
An ace killer in modern time got a time travel and reborn into a princess, whose husband is a powerful genius in the country. Being obedient and submissive to her husband and friendly to his concubines? No way! if you dare to challenge, just have a try!