Ti02

This is a spoiler, it gets cleared in ep 6. But it wouldn't have been an incest regardless.

Yeah they are.

That's a bestowed title. ML's mother told FL, that ML's dad used to be stableboy and she was a butcher's daughter, hence they have no strict rules in the household. They are not directly linked to the royal family as such. It seems ML's dad became a general, gained power and hence was bestowed by that title, making ML the heir currently.
ML is not crown prince, hence his wife won't be crown princess. She is the principal wife of the heir, someone said there is a translation mistake.

Yeah. https://kisskh.at/790870-que-gu#comment-26763878

His wives do not have a romantic relationship with him. They are friends. In fact they are really supportive of FL with ML. His wife has a romantic partner, we have not seen him but in episode 6, but we are told his name. His concubine Madam Rui is more of a confidante/doctor to him, had a husband with whom she shares a child. The husband may have died, but she is not over him. That child calls ML "father" though.

He has a wife, and a concubine, the concubine Madam Rui has a son. FL is the secondary consort.
But you have to watch till episode 6, to get full grasp of ML's relationships with them, its a little complicated. Or I can spoil it for you, but depends if you would like it or not.

Wu Yi does not have a relationship with the royal family. His Xiao Family are family of generals, noble family. His dad is a general, his brother is injured in his leg hence doesn't. He is the heir of his family.
Until and unless there is a twist, we don't know till now.

Yup haha, that's not his half sister. But then he is the SML, so he will never get to be with FL anyhow.

I did not see those scenes. Its possible I am wrong, just a theory. But its also possible ML doesn't know it yet, or when that scene happens he knows but he hasn't told it to everyone.
Even he is ill, has 3-5 years to live, but hopefully he gets cured, how is all eligible rulers ill in this drama, haha.
Cdramas also tend to show MLs not wanting throne/power for peaceful life, they could also go that route, but then they need an eligible ruler for the throne, ahh.

Its really weird actually. ML and SML are really good friends. SML actually sacrificed his peaceful life for him (if he is not acting idk, there can be twists and turns). FL likes SML, even in episode 6 they are holding hands and having happy moments. She and ML know their marriage is fake. I know fake marriages turn into real ones in dramas, but when FL is in an active relationship, with a good person, that would be weird.
Then they really need to make SML very nasty now, for everyone to collectively hate him, and for FL to finally feel betrayed, cope up and fall for ML. They only have 22 episodes for that.
Haha its complicated.

I saw the trailer few weeks back, but nothing from it I remember as such to give a clue. I have not checked previews either.
But in episode 5 or 6, when FL's mother was remembering Empress Wenxi, they showed she was pregnant, and a child, and then saying the child was lost somewhere, and the next scene, it was ML reading a scroll.
But this is not why I thought he is the long lost son. They have spoken about the long lost son, 2-3 times by now, even in a restaurant, a story teller was speaking about this. Emperor will not live long, Mao is not of royal blood. The throne would go to whom them. It has to be someone important, and already introduced. I feel its ML.

Madam Rui Sheng had a husband and the child is with him. Though its really cute when he calls ML father.
But I really thought even if they don't say it, but ML's first wife and his brother secretly like each other, but she wrote someone else's name. Ahh.

Empress Wenxi or whatever her name was, she was close to FL's mother. Empress Wenxi had a child who is lost who FL's mother is trying to find. 300% that child is ML.
Its just not me right? We all can guess that?

FL is not grand tutor's daughter either. His wife knows the truth about Mao.
Mao and FL are not biologically related, they love each other, FL and ML consider their marriage a temporary situation, and ML even helps FL and Mao to meet, to exchange letters. In fact Mao became the regent to protect ML, and for peace. So this dynamic is bound to change once FL and ML fall in love. I understand him, but depends how the story shows that.

Yeah sorry, I meant half brother. I wrote step brother mistakenly. I will correct that.

She is not grand tutor's daughter either, haha. Yeah most of the people in this drama are not the real children of their parents.

He is Grand Tutor's illegitimate son.

He is Prince Qi. That means he is half brother of the Emperor. But he also has a secret identity, I don't know which episode you are, so I would write that in a spoiler comment.

They can hold a gathering in the city, find out and exchange all their children, because currently almost everyone in the drama are not the real children of their families. Haha.

Yeah, I generally watch 10 episodes before forming an opinion haha, lets see☺️.