Here is the full list of all 21 Battle Summoners VR achievements.
Complete your victory at first battle
Collect the babarian crystal card
Complete all missions
Complete 100 times battle with "balder character"
Complete 100 times battle with "kiriel character"
Complete 50 times victory at easy mode
Complete 50 times victory at hard mode
Complete 100 times victory at hell mode
Try the rank mode retry
Try the rank mode 100 times
get a score more than 100,000 points at the rank mode
get a score more than 1,000,000 points at the rank mode
try "PvP mode" on first time
get first triumph from the other summoner
try "PvP mode" 10 times
Basic challenge all clear
expert challenge all clear
first time master challenge win
master challenge total 30 wins
Get 1000 minotaur kills
Get a minotaur card