noun
favorite son-in-law
Used to refer to one's own son-in-law whom one particularly likes or favors. Often carries a warm, affectionate tone.
彼は私の愛婿です。
He is my favorite son-in-law.
愛婿と一緒に釣りに行くのが楽しみだ。
I look forward to going fishing with my favorite son-in-law.