In 'to hide a selkie's coat' it's was said that Imu will removing tounges AND eyes of the Slaves if they rest upon Dragon too long.
Would it only happen to the Slaves or to others as well? Can Imu get even more obsessive\possesive\jealousy?
Probably only to slaves.
Any of the God Knights or the Five Elders looking, Imu doesn't care, because they already belong to Imu and wouldn't be interested anyway. If they were, Imu would strongly...discourage them. Give them a warning and then escalate from there, if continued.
There's really no one else to see Dragon where he's kept so thankfully less people are at risk of Horrible Fate by Jealous Imu.
BUT, if Imu had ever let Dragon just out into Marie Geoise overall, there'd be a higher risk of some greedy lower-ranking Celestial Dragon wanting to buy Dragon possibly, or, heaven forbid, put their hands on him.
That would be "disappearing that one guy from the family line" type punishment justification.