Clue:
Clue 1. The tall man in a black suit who sent Monica to the cemetery looked like a passerby.
Clue two. Monica and Xuan Yue both know "Sister".
Clue three. That sister liked white roses very much before her death.
Other clues:
Additional clues 1. Monica is a gypsy prophet who predicted the fate of February, March and June.
Additional clue 2. A zombie crisis broke out in new york, and tens of thousands of people had died before the incident.
Additional clue 3. Xuan Yue left the Black Moon Warrior.
Additional clue 4. Xuan Yue wants to start a new era.
Additional clue 5. Xuan Yue desperately wants to gain all kinds of power, such as 1. Use the elemental needle to give man strength and help him destroy the world. 2. Ask popova to invent a ring that can capture the seventh sense of others.
Additional clue 6. When he fled in March and April, Xuan Yue said confidently, "They will definitely come back again!"
Guess what:
Guess 1. So far, we only know that Cang Yue uses white roses, and there must be some connection between Cang Yue and Xuan Yue.
Guess two. Cang Yue confided after eating alcoholic chocolate, "I want to prove that I am stronger than Lucifer!" Where does this ambition come from? Xuan Yue must have a lot of problems.
Guess 3. During the Black Moon Island War, Xuan Yue learned from the nightingale that Mr. K could not be found. Xuan Yue said to him in a calm tone and hungry eyes, "You won't find him. He was a ghost nine thousand years ago ..." There was no trace of his resentment, so it can probably be inferred that he left Mr. K for another reason. At that time, when he was taken to Paradise Lost in April, Xuan Yue was very gentle, not only trying to take advantage, but also feeling brotherly. It can be seen that he didn't leave Mr. K because of the Black Moon Warrior. Then his departure is likely to be related to "sister".
Conclusion:
Conclusion 1. Monica greeted Xuan Yue like an old acquaintance when she went to the cemetery, which proved that they had known each other for some time and had a good friendship.
They should have met after the Black Moon Island War.
Reason 1. Because Xuan Yue kills people without blinking an eye. But he is still very polite in front of acquaintances (see guess 3). He can't watch Monica hovering on the edge of life and death in the crisis.
Reason two. Monica predicted their fate in October in that crisis, so she must have predicted the Black Moon Island War, but she didn't seem to tell Xuan Yue. In this way, they met later. ...
It is inferred that Monica and Xuan Yue probably met when they were arrested in March and April, that is, after the Black Moon War. When he fled in March and April, Xuan Yue was not nervous at all (see additional clue 6). This is because he is confident enough to come back in March and April, and Xuan Yue is cautious (just look at his story = =), so it can be inferred that Monica told Xuan Yue about the development of things.
Conclusion 2. Both of them went to the grave with white roses, which proved that "sister" was very important to them. So, who is this "sister"?
Inference one. That sister died in the zombie crisis (see additional clue 2). If so, it makes sense that she knows Monica. She may leave because she can't stand Xuan Yue's vigorous ambition (= =). This possibility accounts for 20% (insufficient evidence).
Inference 2. Xuan Yue knew "Sister" before she left the Black Moon Fighter, but because Teacher K was afraid that Xuan Yue would affect her training because of "Sister", she tried to get rid of or kill "Sister". Xuan Yue couldn't bear to miss Mr. K when he wasn't paying attention, and decided to open a new world for his "sister" and get back at Mr. K (see additional clues 3, 4 and 5). The probability is 60%.
Inference 3. That "elder sister" is a bit like Cang Yue (see Guess 1), so Xuan Yue mumbles to her every day. Cang Yue overheard Xuan Yue's ambition to open a new world (= =) (Cang Yue said that she could still perceive things outside in the incubator), and Cang Yue in the incubator was very angry (see Guess 2), so ... the probability is 20%. (Insufficient evidence-)
It is concluded that "elder sister" is unusual, and people who can be destroyed are unusual, and this elder sister is very gentle, otherwise, how could Xuan Yue be tempted = =.
Summary: How did Monica get together with "Sister" and Xuan Yue? At present, only two people can start a relationship, and if three people are together ... there is still a lack of conditions ...
Most of the three of them are similar to the following plot:
"Sister" wanted to see if Xuan Yue was always loyal to herself, so she set out to find Monica to predict, but didn't tell Monica the identity of Xuan Yue. When "Sister" learned that Xuan Yue was trying to dominate the earth for her own happiness (= =), she felt moved and scared. She didn't want to hurt other people in Shanghai because of herself, so she died in the struggle or under the oppression of Mr. K. When Xuan Yue learned of her death, she went to Monica, and Monica met Xuan Yue in this way. To make up for Xuan Yue, Monica helped him predict this prediction, so ...
I think Sister Song and Brother Bin are too strong, and their thinking is better than Lucifer's ... one ring after another, which is a bit overwhelming. It is suggested that all submarine personnel work part-time as math teachers, and the financial resources are rolling in ~ ~ (after analyzing these plots, my head completely collapses = =)