So I have information on most of the characters in this book!

Ash:

Age: 20

Engaged to Serena

Pokemon: Pikachu, Greninja, Infernape, Charizard, Samurott, and Sceptile.

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Serena:

Age: 20

Engaged to Ash

Pokemon: Pangoro, Delphox, Sylveon, Beautifly, Gardevoir, and Togekiss.

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Clemont:

Age: 20

Dating Korrina

Pokemon: Luxray, Chesnaught, Diggersby, Magnezone, Manectric, and Zebstrika.  

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Korrina:

Age: 20

Dating Clemont

Pokemon: Lucario, Machamp, Hariyama, Hawlucha, Mienshao, and Sawk. 

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Bonnie:

Age: 12

Pokemon: Tyrantrum, Aurorous, Dedenne, Meowstic, Mawile, and Umbreon. 

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Alain:

Age: 22

Dating Mairin

Pokemon: Charizard, Tyranitar, Metagross, Unfezant, Weavile, and Bisharp.  

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Mairin:

Age: 20

Dating Alain

Pokemon: Chesnaught, Florges, Wigglytuff, Spritzee, Audino, and Roserade.

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Emma:

Age: 20

Dating Nix

Pokemon: Espurr, Medicham, Espeon, Gothitelle, Swoobat, and Girafarig.

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Nix:

Age: 20

Dating Emma

Pokemon: Houndoom, MIghtyena, Krookodile, Crobat, Scolipede, and Toxicroak. 

Look: