I'm sorry Byakuren.it seems the fandom has pretty much decided on that,but don't worry,I still love you..:3(plus,you had all that youkai girls harem who practically willing to die for you..)

she actuall fits very bad in the granny squad
exept for her being old she has no point matching
exept bing a final boss or ex boss
yukari yuyoko kanako and eirin look old
(while in yukaris and yuyukus case its just the hat wjho makes the old look)
byakuren only looks adult like yuuka komachi or yuugi
who surly have around the same age

if its just for those reasons you would turn suika and yuuka in "grannys" too
i dont think suika will care about that but yuuka will kick everbodys a** who call her granny

Well unlike Kanako and the rest of old hag deva, Byakuren is a Sanae version of Good girl or good mama. And had a large harem.

I'd figure Byakuren to be among the more youthful of the group, along with Yuyuko (Stuck in her very well developed teens), and Yukari (Is 17) in contrast to Kanako and Eirin.

Don't worry, Byakuren. Murasa understands... and if she doesn't, she certainly doesn't seem to care either way.