"WHY IS it so hard to see your face these days, Yoan?"
"I go by the name of 'Ruto' now, Lady Elina," Ruto said, bowing to the Sun Goddess who was currently possessing Sienna's body. "Are you still alive?"
As soon as he returned to the Eastern Continent, he went straight to House Solfrid.
To be precise, he visited the Sun Priestess in her temple located within the Solfrid Estate.
After all, if the Sun Goddess was possessing the Sun Priestess' body, then they wouldn't be able to leave the prayer room.
Yule could possess any of his representatives at anytime and anywhere because the Moon God had the de Moonasterios to draw his strength from. The Sun Goddess only had Ruto and the Sun Priestess.
[Sienna and I aren't always together, so the Sun Goddess has to draw strength from the temple in order to have the power to temporarily use the Sun Priestess as her vessel.]