Yes the last letter is K and the relation to DATS is Ryuuoku is part of JE/Hero Tales. So 3 points to Pitty. Someone else can do the next one.
R Y U U O K U
L E T T E R S:
Correct Guesses: R, U, Y, O, K
Incorrect Guesses: A, E, S, G, I, T
Maximum Tries: 8
Vande: 12
Onkeikun: 11
Scipio: 8
Pawitp: 7
Lecros: 4
Matze149: 4
Celestial Sacred: 2
Nemomon: 4
Magna: 1
AnimeKido: 1
Albert de Morcerf: 1
Johnzaloog: 1