I'm not sure which character you're referring to. Master Kai has a high chance of appearing in different novels and works because of this name. I will try my best to answer your questions if you can provide more context.
The Pokémon EP Series Index is as follows:
1 Pokémon DPS (PokémonLDA)
2 Pokémon DPS 2(PokémonLDA2)
3 Pokémon DPS 3(PokémonLDA3)
4 Pokémon DPS 4(PokémonLDA4)
5 Pokémon DPS 5(PokémonLDA5)
6 Pokémon DPS 6(PokémonLDA6)
7 Pokémon DPS 7(PokémonLDA7)
8 Pokémon DPS 8(PokémonLDA8)
9 Pokémon MDP9 (PokémonLDA9)
10 Pokémon DPS 10(PokémonLDA10)
11 Pokémon DPS 11(PokémonLDA11)
12 Pokémon DPS 12(PokémonLDA12)
13 Pokémon DPS 13(PokémonLDA13)
14 Pokémon DPS 14(PokémonLDA14)
15 Pokémon DPS 15(PokémonLDA15)
16 Pokémon DPS 16(PokémonLDA16)
17 Pokémon DPS 17(PokémonLDA17)
18 Pokémon Dp18(PokémonLDA18)
19 Pokémon DPS 19(PokémonLDA19)
20 Pokémon DPS 20(PokémonLDA20)
21 PokémonLDA 21
22 Pokémon DPS 22(PokémonLDA22)
23 Pokémon DPS 23(PokémonLDA23)
24 Pokémon DPS 24
25 Pokémon DPS 25(PokémonLDA25)
26 PokémonLDA 26
27 PokémonLDA 27
28 PokémonLDA 28
29 PokémonLDA 29
30 Pokémon DPS 30(PokémonLDA30)