
If you look closely, the rank numbers (from 2-7) are disfigured regular numbers.
Rank 1 looks like an s for starter, rank 8 is Asia's eight (八), rank 9-10 start to look like demon.
close up of rank chart http://www.mangago.zone/read-manga/mairimashita_iruma_kun/nbt/1a5220f87fae934b/Ch5/10/

You made it time skip one year, but we only got to see that ending!?
Well what happened during the one year then if he was treating her as his mother now?

Agreed! I wished she didn't have to leave immediately after the "marriage" and could have stayed longer with yunling. That was so sad that they are now both aware of what happened but she left right after. bittersweet ending. But i guess yunling is the "most lucky" out of the other main characters cos he got to see his imperial mother again.

The emperor requests your presence at his palace, alone.
We'll take a trip in this carriage, away from the celebratory festivities held in his son's honor, alone in the middle of the night....
Yeah...dude, I'll see you in the morning since I'm not your on-call retainer.
"He's not going to kill me, right?"
LOL. Famous last words, as she walks into a dimly lit castle with one servant.
Seems like some parts are missing...or the pacing of the story is too fast.