Otto Warmbier being taken to North Korea's top court in Pyongyang, North Korea in 2016.

President Donald Trump is set to host the parents of college student Otto Warmbier — who died after being imprisoned in North Korea in 2017 — for a White House dinner Saturday.

This just four months after Fred and Cindy Warmbier called Trump’s negotiations with dictator Kim Jong Un “a charade.”

Also attending the dinner will be Richard Grenell, the U.S. ambassador to Germany — and a contender to take over as National Security Adviser after John Bolton’s ouster, CNN reported.

Grenell had a warm meeting with the Warmbiers in Germany last month and pledged to help them win justice for their son, who died days after returning to the US after 17 months of captivity in North Korea.

“North Korea, to me, is a cancer on the Earth,” Cindy Warmbier said in May.

“There’s a charade going on right now — it’s called diplomacy,” she added. “How can you have diplomacy with someone who never tells the truth? I’m very skeptical.”