The Promise Ring is a Secret-rarity Unit Equipment in Anime Expeditions built around a single fighter, Cursed Student (True Love). It raises the unit’s combat stats and swaps its base passive for a Bleed-driven ability that adds extra damage sources during a fight. To use it, you need the evolved unit and a drop that only appears in one place.
Quick answer: Clear the Mastery Act of School Grounds to farm the Promise Ring. It has a 5% drop chance with a 20-run pity, and only Cursed Student (True Love) can equip it.
Where the Promise Ring drops
The Promise Ring comes from School Grounds, the first Story Mode stage in Anime Expeditions. That stage contains Act 1 through Act 5, an Infinite Act, and a Mastery Act, but the ring drops from the Mastery Act only. The regular story acts and the Infinite Act will not give it.
Each completed Mastery run has a 5% chance to award the ring. A 20-run pity backs that up, so your twentieth cleared Mastery Act guarantees the drop if it has not appeared before then. Plan on farming that stage repeatedly rather than expecting an early roll.
| Detail | Value |
|---|---|
| Source | Mastery Act of School Grounds |
| Drop chance | 5% per clear |
| Pity | Guaranteed on the 20th clear |
| Rarity | Secret Unit Equipment |
Evolve Cursed Student into Cursed Student (True Love)
The Promise Ring locks to Cursed Student (True Love), the evolved form of the Secret unit Cursed Student. The base unit cannot hold the ring, so you must complete the evolution first. The ring then slots into the extra equipment slot the evolved unit unlocks.
| Evolution material | Amount |
|---|---|
| Student ID | 1 |
| Sprite (Blue) | 20 |
| Sprite (Purple) | 20 |
| Sprite (Rainbow) | 20 |
| Gold | 5,000 |
Once the evolution finishes, the unit becomes eligible to equip the Promise Ring. Open its build screen, place the ring in its exclusive slot, and its passive changes over to the Equipment Passive described below.
Promise Ring rollable stats
The ring arrives with two randomized substats. Damage is always one of them, within a +1% to +10% band. The second stat is reported as either a Range boost or a negative SPA roll, both of which help this unit. A negative SPA value is a good result because it shortens the delay between attacks.
| Substat | Roll range |
|---|---|
| Damage | +1% to +10% |
| Range | +1% to +5% |
| SPA (attack delay) | -1% to -5% |
You can improve weak rolls with Equipment Rerolls. When one existing roll is already strong for the unit, apply an Equipment Lock to protect it before rerolling. Locking a stat that does not suit the build only raises future reroll cost without helping the setup.
Spirit Bats passive effect
Equipping the ring replaces Cursed Student (True Love)’s original passive with Spirit Bats. It pays out for stacking Bleed on enemies, which matches this unit’s Bleed-focused attacks. The more consistently you apply Bleed, the more often the bats appear.
| Spirit Bats rule | Effect |
|---|---|
| Trigger | Every 20 total Bleed stacks on enemies in attack range |
| Summon | A Bat Spirit spawns at the unit’s location |
| Active limit | Up to three Bat Spirits at once |
| Damage per hit | 25% of the unit’s current Damage |
| Lifespan | Disappears after three attacks |
Confirm the ring is equipped
You know the setup is working when Cursed Student (True Love)’s listed passive shows Spirit Bats instead of its default ability, and Bat Spirits begin appearing in combat as enemies reach 20 Bleed stacks. If the ring will not attach, the usual cause is that the unit has not been evolved yet, since the base Cursed Student cannot use this equipment. Sprite and Gold shortages during evolution are the other common blockers, so gather all of the listed materials before attempting the upgrade.
