Let's investigate the Underground Waterway 4

	; Maps: Underground Waterway
Kana	地下水路を調査しよう４
Rōmaji	Chika suiro o chōsa shiyou 4
Target
	Red Copter Fleet
JP Objectives
Defeat all enemies within 1 turn	1 Skip Ticket
Deal 15 or more hits	20 Jewels
Complete without having to continue	10 Jewels
None	None
JP Quest Rewards
	None

Let's investigate the Underground Waterway 4 in Kingdom Hearts Unchained χ / Union χ is the sixth quest in the Christmas Winter Party Event! series of Event Quests.

Script

Before quest^[2]

Keyblade Wielder "Mog": "I can't believe it's frozen this far... if we don't do something, the whole town will freeze solid, kupo! We've got to hurry, kupo."

Maps

Underground Waterway (1)
Underground Waterway (2)

Enemies

Icon	Enemies	Locations	Notes
	1 Blue Copter Fleet	Underground Waterway (2)
	1 Yellow Copter Fleet	Underground Waterway (2)
	1 Red Copter Fleet	Underground Waterway (2)	Target enemy
Total Number of Enemies: 3

Enemy types

Gallery
Red Copter Fleet Blue Copter Fleet Yellow Copter Fleet

Treasures

Icon	Items found	Locations	Notes
	Attack Prize	Underground Waterway (2)
	Item Prize	Underground Waterway (2)
	Item Prize	Underground Waterway (2)

Notes and references

↑ This quest coincided with a 0 AP event
↑ Translation by goldpanner @KHInsider

JP Version exclusives
Avatar Boards
Avatar Parts
Boy's Uniform (In Class & Student Council) • Girl's Uniform (In Class & Student Council)
Coliseum Boards
Avatar Parts
KH Cloud Costume • KH Yuffie Costume • Puppy Medium • Puppy Bob
Bonus
Class 11 Reachers' Bonus • Class 12 Reachers' Bonus • Class 13 Reachers' Bonus
Event Quests
High Score Challenge Event		High Score Event: 7/8 - 7/21 • High Score Event: 7/29 - 8/4 • High Score Event: 8/12 - 8/18 • High Score Event: 8/26 - 8/31 • High Score Event: 9/9 - 9/15
Christmas Winter Party Event!		Let's go to the Moogle Shop • Let's defeat the Heartless in the Shop • Let's investigate the Underground Waterway 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8
First Three Days of the New Year Event - Get Pet Parts "Kite"!		First Three Days of the New Year Challenge! 1/3 • 2/3 • 3/3
Boss Time Attack - Let's get rewards!!		(S Attribute) Subjugation Time Attack Challenge 1/5 • 2/5 • 3/5 • 4/5 • 5/5
Super Degree of Difficulty Raid Boss Events	Let's defeat the "R Trident Anchor"!	(Party Cooperation and Recommendation) Let's challenge the Super Degree of Difficulty Raid!
VIP Quests
Daily "Broom Servant" & "Magic Mirror" Challenge!		Monday • Tuesday • Wednesday • Thursday • Friday • Saturday • Sunday
New Year's Shimekazari (Fertility) (Prosperity) - It comes with 1800 Jewels, too!		New Year's Shimekazari Avatar Quest 1/4 • 2/4 • 3/4 • 4/4
Kairi KH Illustrated Ver (EX) can certainly be acquired!!		Kairi KH Illustrated Ver (EX) Quest 1/1

[ap-1] This quest coincided with a 0 AP event

[2] Translation by goldpanner @KHInsider

[1]

[2]