Zylo
Check the church sign in Bustoke.

Torasu
In Prompt castle, on the bookshelf near the left elder.

Musashi
After talking with Kane in Prompt, search the large building with two doors. The card is on the wall between the doors.

Kokichi
Watch Kokichi's demonstration of his flying suit, then talk to his assistant to get this card.

Hanzou
In a tree in Runefaust, near the pub.

Gort
After you recruit Gort, speak to his granddaughter in the basement near the center of town to get his card.

Diane
In the first Pao location, in the pigpen.

Amon
Balbaroy will give this to you upon joining.

Teeny Bikini
Alternate Costume for Tao and/or Narsha. Collect all the cards and then in the New Game+ talk to the woman in the hut by where Gong is obtained. She will give it to you.

Maid's Outfit
Alternate Costume for Khris. Found after beating Battle 1 of Chapter 3. Repeatedly tap A on the wall where the Dark Elves were.

Daring Dress
Alternate Costume for Anri. Found after beating Battle 2 of Chapter 3. Repeatedly tap A on the brown mountains coming out of the grey mountains in the northeast corner.