"100 Days My Prince" is a South Korean historical romantic comedy-drama that aired in 2018. It tells the story of a crown prince who loses his memory and has to live as a commoner for 100 days, during which he falls in love with a woman who helps him regain his memory. 

Story Line:

 The story is set in the Joseon era and revolves around Lee Yul, a Crown Prince who lost his memory and attempts to regain it with the help of Hong Shim, a woman living in a small village.

Lee Yul (played by Do Kyung-soo), the Crown Prince, is known for his arrogance and cruelty. However, one day, he is attacked by assassins and falls off a cliff. He survives but loses his memory, and ends up in a remote village where he is taken care of by Hong Shim (played by Nam Ji-hyun) and her father.

Hong Shim, who is known in the village as a widow and a skilled embroiderer, takes pity on the amnesiac prince and takes care of him. She renames him Won Deuk and pretends that he is her husband to keep him safe from the royal court and their enemies.

As time passes, Hong Shim and Won Deuk begin to fall in love, but their happiness is threatened when Lee Yul's enemies discover his whereabouts and come looking for him. With the help of his loyal allies, including his childhood friend Jung Je-yoon (played by Kim Seon-ho), Lee Yul slowly regains his memory and comes back to claim his throne.

As the truth of Lee Yul's identity is revealed, Hong Shim is torn between her love for him and her loyalty to her village. Meanwhile, Lee Yul must navigate the complex politics of the royal court and deal with his scheming and power-hungry uncle, the Regent.

Throughout the drama, viewers are taken on a thrilling journey of romance, political intrigue, and self-discovery as Lee Yul and Hong Shim confront the challenges that come with their love and fight to protect their country from those who seek to destroy it.

"100 Days My Prince" is a South Korean historical romantic comedy-drama that aired in 2018. It tells the story of a crown prince who loses his memory and has to live as a commoner for 100 days, during which he falls in love with a woman who helps him regain his memory. 

Here are some lessons that can be learned from the show

A person who torments powerless people is a fool not a warrior

An idiot who uses his parents’ position as an excuse to bully people.

You must always be careful, the thing about life is that you don't know where one wrong  misstep can lead you.

Some must embrace fighting to protect our citizens, but that doesn't mean that those citizens understand that noble’s intentions.

Getting mad at someone who already realized their mistake isn’t how a warrior should act.

A cornerstone must not shed their tears over personal matters.

An army with only  brute force cannot win.

The nobles always blame the citizens whenever something happens.

Only a lowly and useless dog could bring an unexpected result to its owner.

Make haste slowly.

A drunk and never admits to being a drunk. So, a moron would never admit to being stupid.

Nothing in this world is for free.

A real man should not exploit the poor.

One's knowledge is to be shared and a great man should share the knowledge he has with others.

Sacrifice is necessary for a great purpose.

The worst murder in this world is starving a person to death.

It takes a long time to gain people’s support. But it’ll take only a second to lose it.

If a king/president cannot gain people’s support, he will lose the right to be a king/president. Thus, he will no longer be a king/president.

The tongue brings misfortune.

You can cut a tree with a saw made of straw and water drops can eventually puncture a boulder.

Anything can be done with hard work.

You can learn even from a child. 

When three people walk down a road, your teacher must be one of them.

Great leader is one who listens to those in power and does not ignore weak ones.

It’s foolish to sacrifice small causes for greater causes.

The politicians are even more disgusting than thugs.

Fear will cause failure.

Playing in the water is the best cure for blues.

You can not judge a book by its cover.

A good-looking face is not as important as a good heart.

Marriage is known to be a big event in one’s life and it’s one of the most important events.

There is no bigger goal than marriage which is why we must be cautious to the extreme.

Marriage It’s often referred to as being ship companions. 

A married couple steers the same boat across the river, they share the ups and downs in life.

One's destiny is up to one’s heart, and how determined you are can change your fate.

A wife should listen to what her husband says.

Every object has a purpose, clothes and shoes should be worn. And if you don’t give them a purpose you're being materialistic.

You never forget a forbidden love.

An empty glass must be filled and an empty seat should be filled too.

A wise man helps achieve the beauty of people and never let evil show through.

Be prepared and you should prevail. Do not be, you will be met with failure.

Where there’s no heart, nothing can be seen, nothing can be heard, and nothing can be tasted either. 

You should not use your power  for personal affairs.

It’s terribly saddening to love someone who does not return your affection.

Defying fate is what makes things interesting.

Couples that pass through together never part forever.

Love is only an illusion.

No matter how cold-hearted a man’s, he becomes generous towards his baby.

Rich is not an excuse; do not get food from the sky. They need to work to put food on the table.

The loneliness  is manageable.

A bee busy with work has no time to be sad.

How you feel from within is more important than what others think for you.

The early bird catches the worm.

Love is not about winning or receiving. It's about giving.