Put your thoughts to Ruby (Volume 1 whole volume)

Publisher: Harper Collins Japan
Author: Shime no Tsukasa
Size: 128mm x 182mm
Number of books: 1
Language: Japanese
Category: Female manga, manga
Latest release date: 2016-01-09

Synopsis:
I am a fake fiance ... He shouldn't know anything and staring at me to punish!? Juliet, who had just divorced, was in trouble with life. At that time, Keary, a childhood friend, is told that if she pretends to be her fiance, she will give a high reward. And she meets a young man named Rafael in a treegelin mansion she visited with Kearry. He looked at Juliet and seemed to be suspicious. Elinoa, the woman in the mansion, welcomes her and gives her a nice ruby ​​ring as an engagement celebration. But looking at the ring, Rafael ...!?