There are many similarities. In short I think my shy boss is the light hearted and fluffy version of secret.

The female lead in secret reminds me of the male lead in shy boss. Without revealing too much they both made similar sacrifices.

The male lead in secret also reminds me of the female lead in shy boss where they both similarly fell in love with the other lead in the same way.

Sorry that it was really long and vague. I didn't want to spoil anything. But I both highly recommend both!