It is very unfortunate that the publisher closing down in a halfway.
I could say this manga deserves more attention. I have read until vol. 17 (the latest is in vol. 21), and it is really great, unique, funny, and engaging in a good way. It went down as in vol. 2 because the impact isn't strong as previous volumes, but the later.. is good, very solid.
Fresh concept, it's a widow; she's rich, smart and she can do everything she wants. She is tough, strong willed, I really like woman characters like that. The second that I like is Itsuki, he is handsome but way too innocent, If I was Rinko, I'll be glad to tease him. lol.
This manga successfully portraying rich people lives, its complexity, debates and many more.
One of best josei manga out there.