
Was that Lidusis' brother or Lispen (his guardian?) who was killing The Tower magicians? And working with the dark entity?
Is Lispen Lidusis' brother?

you mean Lispen is the real broher of Lidusis?
Σ(  ̄□ ̄||)

no lispin is/was a caretaker. And lidusis only brother is the brown haired guy/ it shws,in the earlier chptrs, that lispins been around the brothers since childhood.

most likly correct if not then that means lidusis brother didnt know that lispin had his own "secret" plan going on. Also i think lispin is the "betrayer" they were talking about (but these r just my thghts gathered up after looking at all the other comments) :/

If he is they havnt showed any signs in the manga/ so far its only shown that hes a care taker.
(also my own thoughts- i think lispins been playing for diffrent teams in disguise. cause
1. lidusis mother,i think, got lispin into the acadamy/which hes either working for the ma
2.lidiusis brother also told lispin to watch lidius/in which hes working for lidusis bro
3.lispins on some not yet known team/ which might b just b 4 himself OR
4. Hes in leage with all three of them/ in which case the mas been pretending to be good or lidiusis bro was pretending to be bad) though this is all just guessing :/

Did Kyoko realize that Ren is Corn?
Or was she just shocked to see him?

I really doubt it. She has always got those rose colored glasses on. Though that does bring up the question of the little kyoko's since they seem to have put together that corn and ren are the same person. Makes me wonder if she is just pretending to not realize these things. This always reminds me of how much I love this author ٩(๑❛ᴗ❛๑)۶
It's empowering to see a story involving the sex industry in which there is no slut shaming.
It's the oldest known business for a reason. There is always a seller and a buyer and as long as it is consensual and safe then who cares if there is a transaction involved.
But good lord, the artist is more of a pervert then whore. lol.