It's not a series centered around yuri. It has yuri, but that isn't the main focus.
Gotcha. I was going to suggest the lesbian sidecouple tag, too, but looks like someone beat me to it. Either way, this is a great series. Is it a monthly or a bimonthly?
I remember being really excited for this series, although all the girls this author draws look like lolis. Maybe that's just me though? Either way, I miss Tranquil Spring :(
Is there a reason why Sagamani and Saganami have different Author entries? It seems like they are the same person to my admittedly uninformed self.
That said, this was one of my first Yuri series and I still come back to it every few months. I really like this author/ these authors.