The idiom "keep promise" means to fulfill or honor one's obligations or commitments, especially when it is difficult or inconvenient to do so. It can also refer to being honest and trustworthy in general.

The idiom "fate worse than death" means that a situation or outcome is so bad, it would be better if someone had died instead. It's an expression of extreme disappointment or horror at a turn of events.

The idiom "old school" is used to describe something that is outdated or traditional, often referring to a style, way of thinking, or behavior from the past. It can also be used to refer to a particular era or time period when things were done differently.

The idiom "nepo baby" is used to describe someone who has achieved success or status due to their family connections rather than their own merits. The term originates from the Japanese word "nephew," which has been shortened to "nepo.

The idiom "take with a grain of salt" means to accept information or advice with skepticism, as it is not necessarily true or reliable. It suggests that the listener or reader should be cautious and not take the information at face value without verifying it first.