I don't think it's possible. I would say the minimum time to get to that point in the game is more like 4-5 days and that would require a LOT of playing every day. A week is a more reasonable goal.
Can people quest to MooShu in like couple days? like from lv1 to the quest "Second Serving"
Lol this is just the right question for the right person. Here are the sets to get to that point. 1st Option Day 1 = Level 15 (Main quests only) Day 2 = Level 25 (Main Quests only) Day 3 = Level 30 (Main Quests only)
Tadaaa you in MooShu.
2nd Option For this option you will need a questing partner Levels 80+ (60+ if storm) You buy TC blades and you go into battle first and your helper goes in second. Round 1 you blade him, He enchants and hit with (AoE attack) Round 2 Victory! Now here are the sets. Day 1 = Level 20 (Main Quests only) Day 2 = Level 30 (Main Quests only)
WARNING It will take you 5-6 hours a day to achieve that goal