Heart Officer
Heart Officer is the first boss encountered in Rose Kingdom, closing out Act 1 of that zone's Story campaign. It belongs to a set of four officer-titled bosses spread across Rose Kingdom's five acts, Heart Officer at Act 1, Club Officer at Act 2, Diamond Officer at Act 3, and Spade Officer at Act 4, each named after a playing card suit before String Demon closes out Act 5 as the zone's true final boss.
Its wave runs two modifiers: Regen1, which slowly regenerates health over time, and Reinforced, which cuts all incoming damage by a flat 30%. That combination rewards steady, sustained damage over reliance on a single burst window, since the damage reduction blunts big hits while the regeneration works against players who cannot maintain consistent pressure. As the first Act's boss, this is also the lightest modifier load of the four officers, with Club, Diamond, and Spade Officer each adding one additional modifier on top of the same Regen1 and Reinforced base.
Like every Boss-type enemy, Heart Officer carries a hidden tag adding a flat 20% health multiplier and a 30% speed penalty on top of its listed stats, moving at the Boss tier's baseline speed multiplier of 1.68 and modeled at 0.8x scale. Incoming Stun and Rewind effects cap out at 10 stacks rather than being fully blocked, since Rose Kingdom's wave list does not carry the Immunity modifier.
Details
Where Heart Officer Appears
Heart Officer closes out Rose Kingdom Act 1 in Story mode, the first stop in the zone's four-officer lineup: Heart Officer here at Act 1, Club Officer at Act 2, Diamond Officer at Act 3, and Spade Officer at Act 4, before String Demon closes out Act 5 as Rose Kingdom's true final boss.
Rose Kingdom Act 1 also runs in Infinite, Expedition, and Mastery modes, so Heart Officer is not limited to Story progression alone.
Combat Behavior
Heart Officer's wave runs two modifiers: Regen1, which slowly regenerates its health over time, and Reinforced, which cuts all incoming damage by a flat 30%. As the first act's boss, this is the lightest modifier load of the four officers, since Club Officer, Diamond Officer, and Spade Officer each add one additional modifier on top of this same base.
Like every Boss-type enemy, Heart Officer carries a hidden tag adding a flat 20% health multiplier and a 30% speed penalty, moves at the Boss tier's baseline speed multiplier of 1.68x, and is modeled at 0.8x scale. Rose Kingdom's wave list does not carry the Immunity modifier, so incoming Stun and Rewind effects are capped at 10 stacks instead of blocked outright.
How to Counter Heart Officer
Reinforced's flat 30% damage reduction blunts big hits, while Regen1 slowly heals Heart Officer back up between them, so steady, sustained damage beats relying on a single burst attempt.
As Rose Kingdom's introductory boss, Heart Officer is the best place to learn how the Regen1 and Reinforced combination plays out before facing the same base on Club Officer, Diamond Officer, and Spade Officer later in the campaign.
FAQ
Where do I fight Heart Officer?
Heart Officer closes out Rose Kingdom Act 1 in Story mode, the first of the zone's five acts.
How is Heart Officer different from the other Rose Kingdom officers?
It runs the lightest modifier load of the four officer bosses, only Regen1 and Reinforced, while Club Officer, Diamond Officer, and Spade Officer each add one additional modifier on top of that same base as the acts progress.
What strategy works best against Heart Officer?
Steady, sustained damage over a single burst attempt, since its Reinforced modifier cuts incoming damage by 30% flat and Regen1 slowly heals it back up between hits.
Other enemies
Source-checked
Extracted from Anime Expeditions client data (enemies.json, enemy-types.json, enemy-modifiers.json, maps.json). updated · GuideDex staff. Report a correction.