The Child from the Neighbor's House is Probably a Cheat Protagonist

A neighbor's baby was born. It was clearly a baby that understood what we were saying. This must be one of those cases of possession or reincarnation I've heard about in the world! Well, I guess all I can do is watch over it peacefully. And so begins this heartwarming record of neighborly exchanges. This is a mid-length otherworld fantasy story. ※I accidentally posted chapter 3 while it was still in progress. I sincerely apologize for the inconvenience. The author will be away from home for half a month. I will not be able to respond to comments until February or later. I apologize for any inconvenience.