Back - Mr.

In the world of Bitcoin, "Mr. Back" refers to , a prominent British cryptographer.

Choi Go-bong, a greedy 70-year-old hotel conglomerate president, magically transforms into a 30-year-old man.

My Quest to Solve Bitcoin’s Great Mystery - The New York Times Mr. Back

A breezy romantic fantasy with comedic elements, often highlighting the protagonist's elderly habits in a young body.

A rapper who released the song "Yeah (Mr. Back Again)" . In the world of Bitcoin, "Mr

Under his new name, Choi Shin-hyung, he experiences love for the first time with a young part-timer, Eun Ha-soo, and attempts to reconcile with his estranged son.

Because of his technical contributions and stylistic similarities in writing, some believe Back could be the pseudonymous Bitcoin creator, though he strongly denies it . 3. Digital Content & Web Series My Quest to Solve Bitcoin’s Great Mystery -

Check out the official trailer for the drama to see the transformation in action: Mr. Back - Trailer DaehanDramaTV YouTube• Sep 21, 2015 2.