Quote Originally Posted by shinta|hikari View Post
The isekai part is way too unbelievable a truth and will only lessen his credibility to not only his father, but everyone else.

If he just rides the wave that the guardian deity has blessed him, he gets to jump over all the trust hurdles since the society genuinely has magic and godly miracles. He even has GLOWING crests on his arms as proof.

There is simply no benefit and too many risks involved with revealing his old life.
Agreed. The truth sounds too stupid. The lie is more palatable.

If it even really IS a lie. He probably IS blessed by the healing god. As that's probably who brought him to this world in the first place.