The King Eternal Monarch - Confusing things discussion

this is the show which main genre are not crime and investigation yet  all audience became investigator not leaving a single clue  and those who are roughly watching it without alert for dialogue and crime scene (i mean show screen)  they are confused 

conclusion of show : audience became investigators  LOL 

lets see who can solve this case before 15 episode  

Exactly my thoughts :) It's a really interesting drama. I hope they don't end it like "Black". It was a strange ending.

Red string has a very important meaning. If you know the Japanese anime "Your Name," you should know why it is so important. Or just read about it, it's from Wikipedia;.              The Red Thread of Fate (simplified Chinese: 姻缘红线; traditional Chinese: 姻緣紅線; pinyin: Yīnyuán hóngxiàn), also referred to as the Red Thread of Marriage, and other variants, is an East Asian belief originating from Chinese mythology. It is commonly thought of as an invisible red cord around the finger of those that are destined to meet one another in a certain situation as they are "their true love".^[1] According to Chinese legend, the deity in charge of "the red thread" is believed to be Yuè Xià Lǎorén (月下老人), often abbreviated to Yuè Lǎo (月老), the old lunar matchmaker god, who is in charge of marriages. In the original Chinese myth, it's tied around both parties' ankles, while in Japanese it's bound from a male's thumb to a female's little finger, and in Korean culture, the red thread is thought to be tied around the little finger of both parties. Although in modern times it's common across all three cultures to depict the thread being tied around the fingers, often the little finger. The color red in Chinese culture symbolises good fortune and is also the color of traditional Chinese weddings where both bride and groom would wear red throughout the entire procession or at some point during the marriage rituals.

Not only. I quote conversations between a boy and Tae Eun in episode 11, when he helped her escape:.                                      B: I warn people of danger and defeat the enemy.                        T: What? By the way you're in this world too (they met in her world, when he collided with her on the street and her pass fell into the canal).                                                                                 B: There's only one of me. I went to the other world. I'm restoring balance. There are too many enemies.                          T: You...What is going on? Who are you?                                          He is definitely a guardian of the balance (or maybe a God). What I'm curious about what is the relationship between him, Luna and Tae Eul, because he talks with them and helps them. Are Luna and Tae Eul the same person? Certainly Luna is not a bad person, because the boy talks with her.

I think the real question is why tf did Luna kiss Shin Jae ( `ε´ )

Jk lol

All these assumptions seem pretty legit but where did the Lady Noh being the lover of his grandfather come from? Did I miss anything? 

Regarding the connection between Lady Noh and the book, in episode 3, when Lee Gon and Tae-eul were in the bamboo forest, she asked him again what his name was and he said she can't say it even if he told her, and she asked if he is the poet Kim So Wol. When he asked who Kim So Wol was, she remarked how good he was at pretending then  said she won't "finish the last words I had in my heart". This line is in Kim So Wol's poem Invocation of the Dead. Lee Gon brought a copy of the book Azaleas containing this poem to Corea. Lady Noh saw it in his coat, probably recognized the author as from her native world and has been reading the poems since. I won't be surprised if she knew the author personally. I've been wondering if the poem portends a bad ending but hoping not.

Exactly! It's far from boring because one has to pay attention to scenes and dialogues that may seem irrelevant at the time but actually are important later on. 

I think that they sacrificed so much time for romance, because viewers accused them of showing not enough attention to the feelings of the main characters.