Oshimo

 is an NPC.

Exchange
This does not revive your pet, it exchanges it for a new and healthy one of the same type. The new pet will have no stats or abilities. If you have a pet with many bonuses, you are better off doing the Pet Sanctuary. For Subscription pets it also adds the 2 months exchange lock.

Drop/Pick up a pet
Exchange your pet for a Bow Kennel Certificate so your pet will not need feeding until you return to retrieve it. This is charged at an hourly rate of 10 Kamas.