Errrr... isn't 16 chapters too early to found about she has the "Killer Queen" kind of power?
Now thinking about it, now I need a fanart of Yotsuha and Killer Queen.
I hope we get an explanation on how she got that time-turning watch in the first place. It would be pretty cool if the main antagonist had a similar ability or a way to retain his memories or something. Along with a proper motive on why Uchi needs to die.