The only guide I can find. Use Google Translate.
Quest 1
NPC : Fedimian accessory merchant
Area : Kadumel Cliff
Target : Blue hohen gulak
Item : Intact blue hohen gulak horns
Qty : 6 nos
Remarks : The drop rate (quest item) is pretty low, as low as the real blue hohen gulak horns (material). Spent 3 hours to finish this. Just keep going and you’ll get all six.
Quest 2
NPC : Orsha blacksmith
Area : Nevellet Quary 1F
Target : Some big blue rocks
Item : Iron ore
Qty : 14 nos
Remarks : I didn’t calculate the time required, but it seems to have a pattern similar to the 4th quest. Check the links in the korean forum post for spawn points. I got iron ores from 4 out of the 5 spawn points indicated. Rock may respawn at the same spot. Don’t walk away until it disappears.
Quest 3
NPC : Orsha companion trader
Area : Lemprasa Pond (from the korean forum post)
Target : (n/a)
Item : (n/a)
Qty : (n/a)
Remarks : Well, the guy has been ignoring me since Boxing Day.
Quest 4
NPC : Rima from Klaipeda
Area : Emmet Forest
Target : Some grass ball on the ground
Item : Silk cocoon
Qty : 9 nos
Remarks : There’s a pattern for this: 00:00:00 grass ball appears at one of the spawning points, 00:05:00, grass ball disappears, 00:10:00 grass ball respawns at one of the points in one of the 3 channels. You can get one every 10 minutes. 3 spawning points. Check the links in the korean forum post for location. ** I found another grass ball in a different channel, spawning at the same time, but I can only get one silk cocoon within that 10 minutes interval. **