ξ [ Xi ]
μ [ Mu ]
ε [ Epsilon ]
δ [ Delta ]
Ω [ Omega ]
ι [ Iota ]
α [ Alpha ]
β [ Beta ]
γ [ Gamma ]
ζ [ Zeta ]
η [ Eta ]
Θ [ Theta ]
κ [ Kappa ]
λ [ Lamda ]
ν [ Nu ]
Ο [ Omicron ]
π [ Pi ]
ρ [ Rho ]
Σ [ Sigma ]
τ [ Tau ]
Υ [ Upsilon ]
φ [ Phi ]
χ [ Chi ]
Ψ [ Psi ]

Those are the Greek letters in Myst: Entry to Demise, apparently...

Oh hey those are the Greek letters used for the various Continuities of Dragon Riders. While Xi was the one started by Alexis's brother Aidan, Epsilon and Mu are both the first Continuities I had started (Mu being for Project Vresun: Ciraian Ruins, Epsilon being the canon Continuity and the fan Pokémon region named Vresun being unrelated to Dragon Riders).

And why so much puzzles Kim ;_;

She's a fan of La-Mulana, I believe, which may or may not be the reason for the puzzles.
La-Mulana had evil puzzles. Like, really evil.

Wow, I guess rarely watching TV these days or rarely reading books is to blame for that... D:

Don't worry; I don't know what Game of Thrones or a Song of Fire and Ice are, either. (Though I bet that Fire/Ice-type fan Pokémon of yours might.)

Will the flying archer Bute enemies appear as enemies?