The secret was held by the Black Prince (Volume 1-2 new book)

Publisher: Starts Publishing
Author: Akiko Kitami, Miyayu Kita
Size: 128mm x 182mm
Number of books: 2
Language: Japanese
Category: Female manga, manga
Latest release date: 2019-04-19

Synopsis:
"If you want to be secret, can you hear what I say?"
Rio Tomino is 27 years old. Five years after working for a real estate company, at first glance, a normal OL, Rio, has a secret that no one can tell.
Rio has been hiding his real face at the company, but because of the reason, the ace, Kaneko of the sales department, is known for the secret. Kaneko is a good person and is good at speaking, and is a good -looking guy and is called the "perfect prince".
I think he should be a secret ... and suddenly changes his attitude! "Let's pretend to be a lover as an exchange condition."
At first, I was confused, but I was thrilled with the kindness and sweet words that I show occasionally without any means ... A fake lover contract with the Black Prince is a lot of difficulty -!?!?