Rui was playing with his little friend as always. but today Tsukasa didn't have as much energy as usual... he didn't want to play and all he did was lie on the couch, not eating or drinking anything. It made Rui worried about Tsukasa.

when their owners came, they immediately noticed that Tsukasa was not himself and decided to take him to the vet, but Rui, for some strange reason, did not want to let Tsukasa go to the vet alone.