Living the life of an adventurer is thrilling and can have a lot of perks. One perk may be able to meet mythical creatures and sometimes gives you magical items or grants wishes (with reservations, of course). You look for quest with high chances of encountering this mythical creatures so you can get higher pays. One quest you received is about looking for a talking frog in the marshes and ask about where to did he meet the princess of pangpang. You went and looked for the frog but you saw him locked up in a cage. He promises to answer your question if you set him free.