@Welkin2: all three seem to be from the shops: map 68 (orcs; only earth) and 119 (シャブロー - shop with groping discount; all three).
Though a question of my own: is getting the need sum in the trade city possible in the time limit without losing virginity ?
Well, I'm not 100% sure there is one, yet there's a counter on the coin item...
Also, what's the easiest way to gather those 100 events for armor uncursing ?
And elaborate on that fight with the trainer - if stripped he doesn't leave the battle or really fight, but still has too much health to just go through it.