The Immortal Doctor Son-in-Law, Whose Wife Is a Succubus Princess

This book is also known as: I Could Have Lived off the Succubus Crown Princess's Wealth with My Looks, but I Insisted on Becoming a Supernatural Miracle Doctor with Cheats

Synopsis:

Butler, is your young mistress's live-in son-in-law dead yet?

My esteemed Lady, the son-in-law is alive and well.

Oh? Is the princess pregnant?

My esteemed Princess Royal, the princess has already given birth to a daughter and is pregnant with her second child!

That human boy is that impressive? He can get a succubus pregnant and still stay in such good shape? Bring him to me at once!

Your Majesty, given his current status as the Crown Princess's husband and the princess's consort, you can no longer summon him.

What other status does he have?

The foremost immortal of the Wan family, a peerless divine physician!