Responses
http://www.mangago.zone/read-manga/koibito_wa_hatsujouki/
I'm pretty sure it's chapter 7 of this.
Blessed are thou who have great memory (づ￣ ³￣)づ
Glad to be of help!( ´ ▽ ` )ﾉ
Probably a oneshot of a guy looking for an engagement ring and he enters a chinese looking place that ends up being a dragon clan whatever place. He gets a ruby ring and I think he also wears some other jewelry in his body