he was just your average, overworked, office worker who had a small dog at home...suddenly the world around him changed and he realized he and his dog had been isekai'd...something is very different about his little dog who is not little anymore...
Isekai Teni shitara Aiken ga Saikyou ni narimashita - Silver Fenrir to Ore ga Isekai Kurashi wo Hajimetara