The Watchman immediately sent all nine Paper Cranes into the game, and what came next was the main event.
[The Barbarian accepted your treasure and was about to turn around and leap away.]
[You swiftly call out to the Barbarian and hold out all nine Paper Cranes in your hands.]
[The Barbarian looks back at you with a puzzled expression, sees the nine distinct Paper Cranes, and cannot help but widen his eyes in amazement.]
["You actually... help... us... so much..."]
Mu You raised an eyebrow at this; the Barbarian said "help 'us'," which implies that giving trinkets to other Barbarians could very likely also result in Paper Cranes.
It seems these Barbarians judge one's friendliness towards their race by the number of Paper Cranes a person possesses.
[The Barbarian took all the Paper Cranes from your hands, unfolded them right in front of you, and then swiftly merged the nine pieces of paper into a single, larger Paper Crane.]