Popular Hallyu idol group MBLAQ recently shared stories of the tough training that they received from their superstar mentor, Rain.

On the recent recording of jTBC's 'Park Kyung Lim's Oh! Happy Day', the MBLAQ members sat down to talk about their trainee days.

They shared a story about a particularly tough training regiment by saying, "As in the past, we still cannot keep up with Rain sunbae's endurance and tenacity. Sometimes we trained for 14-15 hours a day and he would not let us drink water once."

Member Seungho added, "However, Rain sunbae was training with us the entire time without drinking water as well, so we couldn't say anything."

The members continued to share a story about the time when the air conditioning did not work during the hot summer, to which G.O said, "I guess Rain just has a lot of moisture in his body".

Don't forget to catch the episode which will be broadcast on March 19th at 9:40 KST!

Source & Image: Nate