
A woman who lives together with Kiryu
Living under a false name in the corner of Nagasu district, she is a beautiful woman who is close to Kiryu, who makes a living as a taxi driver. She is also known as the ‘number 1’ of the well known club “Oliver” in the Nagasu District.

Despite Kiryu’s reluctance, she forces herself into his apartment and gallantly helps him out every day.
Mayumi gives Kiryu, who is leading a lonely life in Fukuoka after seperating from Haruka and the children at Asagao, a life of peace without ever inquiring about his past. Before long, this life starts meaning all the world to him…
On a certain day in december 2012, while Kiryu is tormented by his past, Mayumi reveals her true feelings, which she has locked up deep down inside for all this time.

The reason I chose to write this one up is because of her relationship with Kiryu. It seems Kiryu has a new love interest, which I found interesting.
Regarding the line, “She is also known as the ‘number 1’ of the well known club "Oliver” in the Nagasu District.“, I’m not sure what kind of club this is supposed to be, it just says she’s number one of club "Oliver”, but it doesn’t specify Hostess or anything, so who knows? My first guess was hostess though. – Captain Epic from KHH Fansubs