Here is the full list of all 48 WILD HEARTS achievements.
Successfully hunted a deeply volatile kemono in all areas
Successfully finished 300 kemono
Spent 30,000 on goods from the store
Successfully developed every different restorative bath
Successfully enhanced one tsukumo form to the maximum
Successfully befriended 200 tsukumo
Successfully opened up all possible camps
Successfully caught 100 creatures in the wilderness
Successfully completed all building extensions and restorations
Successfully dyed armor for the first time
Successfully petted a small kemono 30 times
Successfully obtained 90 seals from Nobumitsu
Successfully hunted your first deeply volatile kemono
Successfully conjured 30 dragon karakuri in Akikure Canyon
Successfully enlarged a single dragon pit as much as possible
Successfully hunted the source kemono, deep inside the sacred mountain
Successfully gathered your first talisman from the wilderness
Successfully obtained an extremely valuable weapon
Successfully deflected 20 kemono attacks using fusion karakuri
Successfully conjured 30 dragon karakuri at Fuyufusagi Fort
Successfully downed Amaterasu following the attack on Minato
Successfully inflicted a status ailment upon a kemono 20 times
Successfully finished a mighty kemono inside 5 minutes
Successfully hunted the deathstalker ensconced in Fuyufusagi Fort
Successfully finished 50 kemono with a single weapon type
Successfully conjured 30 dragon karakuri on Natsukodachi Isle
Successfully completed 20 quests online
Successfully provided assistance 5 times
Successfully flew 150 m with a glider
Successfully revived a fellow hunter online for the first time
Successfully hunted the earthbreaker that appeared along the Harugasumi Way
Successfully awakened 20 types of karakuri
Successfully traveled a distance of 10,000 m by karakuri
Successfully conjured 15 dragon karakuri in Minato
Successfully finished 30 kemono
Successfully conjured 1000 basic karakuri
Reach the limits of human-path affinity by modifying armor
Successfully activated your “hunter's arm” 30 times
Successfully conjured a fusion karakuri 50 times
Successfully finished a kemono before it could land a single attack on you
Reach the limits of kemono-path affinity by modifying armor
Successfully used a karakuri attack 100 times
Successfully obtained your first document
Successfully completed your first quest for a citizen of Minato
Successfully conjured 30 dragon karakuri along the Harugasumi Way
Successfully conjured 200 basic karakuri
Successfully completed your first food processing
Successfully reached Azuma, where kemono roam free