Just a little theory i got whilst combining all other theories as/ guesses stated below :))

Bloopy January 31, 2017 10:13 am

For every mission , every 'main' reincarnation she meets , that is her sifu's past self . We cant deny the fact that the emperor fell for her and how his appearance looks oddly familiar to the sifu ( the author's giving us hints or it's just the drawing ╮( ̄▽ ̄)╭ )
And just like @JeanneZoroLaw said ( I wish mangago have a tag option ) , the sifu is actually waiting for the girl to fall in love with him ; and of course, i think she's gonna.
Everytime she went back to the present , she's going learn something new about the sifu and fell in love ; but for a dramatic plot , i bet she's going to end up stuck in the past . Girls who have never been touched by love are vulnerable you know (⌒▽⌒)
well , i guess i am pretty much rambling here and arent making any sense ~
ps ; sorry if my English is broken or what not .. thank youuu

Responses
    Bloopy February 2, 2017 7:01 am
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    LOL , i'm asian ~ and definately, English is not my mother tongue~ Oh really? Thanks (=・ω・=) But i think my grammar ( and TENSES ) is all over the place @ suckss , hahahahahahaha

    Bloopy February 3, 2017 4:08 am
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    Haha , that's okay ^^ thank you , again .

    Arina March 6, 2017 3:31 pm

    Oomg that would be soo awesomee. It also crossed my mind your theory a little bit so i doo hope that it will be like that. It's annoying that 2 chapters appear after a month..