Apc you kinda don't have a case on Mr Tent. aside of yukkuris being able to say "if they loved it" by telling it "yukkuri really likes to refresh". Yukkuris don't have rights or legal protection so technically anything can be done to them unless they are gold badged onward, and sometimes silver badged.
So i'm sorry to tell you this but you'll have to let Mr Tent go.
They are in a worse situation than even animals which have some degree of rights, you may even had a case of animal abuse if that was a dog, a cat, a horse or something else.
But a Yukkuri? Unless it's Gold or Platinum, don't expect any court to accept the case and not kick you out while laughing at the idea of charging someone for assaulting a magical talking manjuu that lacks the "property" legal status that gold and platinum gives =V