Of course Ren would have a picture of a dog for Yuuki contact, it seemed so obvious but it still caught me off guard somehow. Anyway Tenka you better be safe dammit. In reality when so many death flags have been raised you would keep her alive or a fake death scenario because it would be too obvious to kill her after you raised so many or maybe I'm reading to much into this, but she does need to get her slave form with Yuuki like come on that's probably the most anticipated thing from this manga along side Ren third reward that she will undoubtedly fail to cancel again XD