2PM is preparing for a grand return and following their first teaser which was written in Morse code, the group has released another mysterious teaser video titled, ‘Code #2’.

On April 8th, JYP Entertainment released new video containing the mysterious message: “Jabir_ibn_hayyan, Heinrich_khunrath, cornelius_agrippa” followed by a series of numbers: “3.6.1, 149.26.6, 23.12.1, 166.9.5, 78.23.11.”

It is said that the aforementioned names are famous alchemists over the history of time, however the included numbers are still a mystery.

What do you think it means?