Hello!

As far as I know, there is currently no file that can give you the info about the Level Requirements for you to Unlock a specific Game System or Interface. However, I'd love to share this list with you with what my team currently have:

Level 1 - Ninja Handbook/Ranking/Daily Recharge/Server Opening Event

Level 3 - Ninja Interface

Level 5 - Benefit Hall

Level 7 - 7-Days Login Reward/Talens Interface/Power-Up Unlocks(Strengthen,Upgrade,Magatama)

Level 8 - Power-Up Icon/Equipment Strengthening/Beset Magatama/Upgrade Equipment

Level 11 - Recruit Interface(Bond Treasure, Seal Treasure)/Groceries Storage Room Interface

Level 12 - Test Ninjas

Level 13 - Lucky Runes

Level 15 - Ninja Exam/Beset Magatama - Full Opening

Level 16 - Group Interface/Daily Practice

Level 17 - Groceries Storage Room - Shops Opens

Level 18 - Home Interface

Level 20 - Elite Instances

Level 21 - Arena

Level 22 - World Boss - Nine Tails Invasion

Level 23 - Rich Field

Level 24 - Progress Feature

Level 25 - Black Market Merchant

Level 26 - Ranked Battle(1 team)

Level 27 - Reputation Hall

Level 28 - Survival Trial/Ninja Cultivate

Level 29 - Ninja Collection Scrolls

Level 30 - Team Instances/Sage World Battlefield/Awaken Feature/Season System

Level 32 - Mood System

Level 39 - Strong Approaching

Level 40 - Refine Feature

Level 43 - Battle Armor

Level 44 - Clothing

Level 45 - Purify/Ranked Battles(2ndline)

Level 48 - Mysterious Cave

Level 50 - Summon Interface

Level 53 - Summon Hunting

Level 54 - Five Nature Chakra

Level 55 - Tactics/Wanted Missions

Level 56 - Ranked Battles(3rdline)/Treasury/Ninja Assist

Level 58 - Assist links

Level 60 - Tactics(PagesUpgrade)/Treasure Maps Usable/Breakthrough System Unlock

Level 65 - Myoboku Cultivation/Charms Interface

Level 70 - Secret Scrolls

Level 80 - Nature Cultivation

Credits to the Player Guide Team of Naruto Online EN and its Staff Members

Thank you!