School Exchange

The school exchange are stages that drop materials required to upgrade the Unique weapons of students. Unique equipments are unlocked once a student has been leveled up to 5 stars and provide bonus stats to the student. These bonus stats can be viewed on their respective page from Characters.

In school exchange, you will battle select students from their respective school. Currently, there are 3 schools which include (top to bottom): Trinity, Gehenna, and Millennium. Each school also consists of 3 stages, A-C, where the latter stages are more significantly challenging but include better rewards, similar to Bounty Hunts or Commissions.

Different schools will drop different upgrade materials which caters towards different guns. Trinity, Gehenna, and Millenium will respectively drop springs, hammers, and gun barrels. Springs will have a 1.5 xp multiplier when used to upgrade SMGs, SGs, and HGs; Hammers on ARs and GLs; And, gun barrels on MGs, SRs, MTs, and RGs. Firing pins will have a universal 1.5 xp multiplier.

Starting or sweeping a stage requires AP and tickets. 2 tickets are given for each school daily but more can be bought in the shop for 30 pyroxene. Below is a table displaying the drop rates for each stage.

Credits to Noxy#8299 and アイザヱー#6944 for data

Recommended Units & Strategies
The following strategies are primarily for stage C but most can be applied to earlier stages as well.