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Xenoblade Chronicles X: Definitive Editioncontains a surprisingly large number of playable characters, totaling 22 different party members. Each is unlocked through different methods, whether they’re with you from the beginning, obtained through story progression, or through completing one of many affinity missions.
Of those unlockable party members, one of the most interesting options is Celica, a young Qlurian girl who is often accompanied by her large Gaur friend, Rock. Her charming presence is only rivaled by her combat prowess, as she wields her knife and dual guns to great effect. This guide will detailhow to complete both affinity quests to unlock Celica as a party member.

Affinity Mission 1 - Manhunt
Unlike most other unlockable party members,Celica is locked behind two separate affinity missions. The first of those, titledManhunt, can be acceptedonce you have completed Chapter 8of the main story, and have reached at leastlevel 33.
The mission begins withCommander Vandhamtasking you, Elma, and Lin toinvestigate a lead he detected regarding Ryyz and Dagahn,two members of the Ganglion army who spearheaded the assault on New Los Angeles in the previous story chapter. He says that a small girl and a large creature werespotted around Noctilum’s Qing Long Glade area.
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Upon arriving inNoctilum, the party sees arecently extinguished campfire, before a group ofMarnuck soldiers working for the Ganglion approach,seemingly searching for the same duo you are.
You aregiven a choiceof whether you would like to fight them or not, butthis choice does not impact the rest of the quest, so pick a fight if you wish or avoid it if you don’t.
From there, the party learns thatmore Marnuck soldiers are stationed near Shark’s Jaws, implying that’s where the targets are. Once youarrive at the Shark’s Jaws cave, you’ll spot your duo: not Ryyz and Dagahn like was expected, but instead a young Qlurian girl and a large creature by her side.
After introducing themselves asCelica and Rockrespectively,Elma offers to grant the pair asylumin New Los Angeles, though Celica doesn’t trust that offer. Before an agreement can be made,more Marnuck soldiers enter the cave,starting another fight.
Unlike the previous fight, this one is not optional, so be ready for a brawl.
Once theMarnuck are defeated, Rock manages toconvince Celica to go to New Los Angeles,since it will be safer than constantly being on the run from the Ganglion. The pair thenmove to the Integrated Production Plant in the Industrial District, where you witness the two acclimating to their new home.
WhileCelica and Rock now have a home,if you want them to trulybecome your allies, you haveone more affinity missionto complete.
Affinity Mission 2 - New In New LA
For the second Celica-centered affinity mission, titledNew in New LA,you must havecompletedthe previous affinity quest,Manhunt,and havecompleted Chapter 9of the main story, titledWarriors of Wroth.You must also beat least level 44to accept the quest as well.
Picking up right where Manhunt left off,Celica and Rock are struggling to adjust to lifewithin New Los Angeles, asDirector General Chausson continues to press for Rock to join B.L.A.D.E. as a fighter due to his large size, despite him being a pacifist by nature.
To helpearn her and Rock’s placein the city,Celica runs off and decides to join B.L.A.D.E.herself on a whim.
With her initial disappearance, you aretasked with finding information regarding her whereabouts. After finding the first piece of information,talk to Vandham to learn whyCelica went to join B.L.A.D.E. before looking for the second.
The first piece of information is located at theend of Armory Alley, right beside theAM Manager console, while the second piece is located near theB.L.A.D.E. scouting console.
Once you’ve gathered both pieces of information,Rock will appear sitting in front of the B.L.A.D.E. barracks, saying that Celicawent to Sylvalum aloneto gather Selenean Sage, and that he wants to gohelp her to verify she doesn’t get hurt.
You, Lin, and Elma decide totag along, so Rock doesn’t have to fight.
At this point in the quest, Celica can be found in the Behemoth’s Shadows cave in Sylvalum, which isonly accessible if you have the Skell Flight Module unlocked. If you don’t have that, accept the mission Flight Module from the B.L.A.D.E. concourse once you’ve completed Chapter 9.
Once you’ve made it to theBehemoth’s Shadows area, follow the path to view afew short cutscenes with Rockexplaining his affection for Celica, before heading to thevery back of the caveto find Celica herself.
While itmay appear that you need to go on footto reach Celica,you can actually take a different path with your Skellin order to have it for the upcoming fight.
Celica did manage tocollect the Selenean Sageon her own, but is now beingpursued by a ferocious monster.Thankfully, you and Rock arrive just in time to save her from certain doom,leading to a fight against a Dimnet Xiphas. You canuse Skellsin this fight, thankfully, so it’s not very hard.
Once you’vedefeated the monster,speak to Celica and Rock at theentrance to the Behemoth’s Shadows cave.After that, you canreturn to New Los Angeles to speak to Commander Vandham, who congratulates Celica on a job well done, marking her start as anofficial member of B.L.A.D.E.Rock also obtains a job from Chausson to help with the construction of New Los Angeles, marking the end of this quest.
Once the quest is done, you will officiallyunlock Celica as a playable party member. She uses avariation of the Psycorruptor class,wielding a knife and dual guns, making her a force to be reckoned with on the battlefield.