Ekin Cheng did not join the Four Heavenly Kings during his peak period because he did not have many works at the beginning, and some of them needed to enter the entertainment industry, not just singing.

So it is impossible to do both sides well.

Strength in one aspect.

There are only four places for the Four Heavenly Kings. The competition is fierce and there are many singers in singing. They are all very strong, so they did not enter the Four Heavenly Kings.