Never be known to Mario Luigi's secret

It seems that Luigi has the secret that Mario can never say in that "second eternity" appearing in the Super Mario series. If this happens to be Mario, it may be a scramble not to imagine.

Details are from the following.
This is not known to Mario Luigi 's secret.
Imgur: the simple image sharer Gbkwd.jpg


If such a thing can get to Mario it is not likely to be done with brotherhood quarrel degree.