S-Class Arc The Last Rose Drop Rate Up! Takes up 25% of the base S-Class Arc chance.

• 1. How to Participate: The Nocturne Special Arc Research Program is available! Use Tri-Keys in the program to obtain rewards.
• 2. Featured Arc: During the event, the drop rate for the S-Class Arc The Last Rose is greatly increased!
• 3. Limited Issue: This program features Limited Issue pulls. Opening one grants 10 Arcs of random rarity.
• 4. Pity System: Arc pity progress is shared across all Limited Issues.
• S-Class Arc
• Base drop chance for any S-Class Arc: 3.0000%; Overall chance with pity: 4.1900%; Chance for featured S-Class Arc (The Last Rose): 1.6800%. Pity System: Every 6 pulls guarantees an S-Class Arc; Every 8 pulls guarantees the current featured S-Class Arc: The Last Rose. This pull pity counter will accumulate permanently and can be inherited in different Limited Issues.
• A-Class Arc
• In this Arc Research Program, each Arc obtained has a base chance of 7.0000% to be an A-Class Arc. The overall drop rate (including pity) is 13.4700%. At most 1 pull guarantees an A-Class or higher Arc through pity.
• B-Class Arc
• In this Arc Research Program, each Arc obtained has a base chance of 90.0000% to be a B-Class Arc. The overall drop rate (including pity) is 82.3400%.