I must admit, I like this a bit better than the original. To no fault of its own, Tate no Yuusha just didn't feel as fun and engaging once the big isekai ball started rolling even faster. This at least takes care of two of the big generic isekai points; He isn't building a harem (or ar least, his band of birds aren't lusting after him) and he's got a clear objective (that isn't "defeat the demon king" or "get revenge"). Still OP, but it makes sense why