Little Mermaid
리틀 머메이드 · リトルマーメイド

Tiers by mode
Source: prydwen.gg tier list
Skills
Bubble Order
PassiveActivates only when in Focusing status. Affects all allies. Focuses fire continuously. Activates when Full Burst ends. Affects all allies. Cooldown of Burst Skill ▼ 7.48 sec. Activates when entering Full Burst. Affects all allies. Attack Damage ▲ 4% for 10 sec. Activates each time total ammo consumed by allies reaches 400. Affects all allies. Fills Burst Gauge by ▲ 37%.
Bubble Wave
PassiveActivates when the enemy appears. Affects the target. Bubble: Damage Taken ▲ 5.05% continuously. Activates after landing 50 normal attacks(s). Affects the target if the target is in Bubble status. Explosive Bubble: Damage Taken ▲ 5.05% continuously. Stuns for 3 sec. Removes Bubble. Activates every 1 sec only during Full Burst. Affects random enemy unit(s). Deals 63.36% of final ATK as damage. Attacks sequentially for 4 time(s). Activates each time total ammo consumed by allies reaches 500. Affects random enemy unit(s). Bubble Barrage: Deals 85% of final ATK as damage. Attacks sequentially for 10 time(s).
Siren's Song
Active · Cooldown 20sAffects all allies. Attack Damage ▲ 10.13% for 10 sec. Reloads 33.26% magazine(s). Affects self. ATK ▲ 17.28% of caster's ATK for 10sec.
Skill descriptions are the official in-game text (global server).
Investment & usage
Treasure: No dedicated Treasure is mentioned. Instead, Collection Item (weapon collection level) SR15 is effectively the standard — 99.2% of real users run SR15.
Investment profile: By real user statistics her Overload completion rate is 100% — owners invest to the end almost without exception, making her a top-priority character. Skills are at 10/10/10 for 99.9% of users, so effectively everyone finishes her.
Skill priority: Skill 1 = Skill 2 = Burst Skill (nearly everyone sets all three to 10)
Overload priority: Elemental Damage (adoption 94%, 4 lines on average) > ATK (adoption 90%, 3 lines) > Max Ammo (adoption 74%, 2 lines) > Hit Rate / Crit Rate / Crit Damage (around 40% each, 1 line)
Consistently fielded as a top-tier Wind code dealer. Often built into Wind Union Raid and stage teams alongside Nayuta, Scarlet: Black Shadow and Liberalio. Also used in fast burst-rotation stage teams together with Crown, Rapi: Red Hood and Snow White: Heavy Arms.
Appears in 71 teams
Showing 6 representative teams.
Blaze-ing Through Campaign ft. Rapi
CampaignCrown· Little Mermaid· Rapi: Red Hood· Helm· Modernia
[Source: prydwen.gg Team Database] A very basic team for Campaign. Rapi provides high single target and AoE DPS, while Mod and Helm are used according to the situation. Since both of the Fire DPS are MG units, they can hunt down any rapture with ease because MG units can easily lock on to core. If you need AoE support, burst with Modernia, but otherwise just burst with HelmT to ensure the team lives through anything. If your Modernia is not well built, but your Rapi has great OL gear, you may sub her out for Naga. This way, you basically funnel all buffs into Rapi and allow her to showcase why she is the best unit in the game. This team is usable accross any element! Substitutions: HelmT can be replaced with Maid Mast or Naga if Siren is B1. Siren may be replaced by other B1-CDR units if HelmT is in the team for burst generation. Modernia can be replaced by Naga if you have a well invested Rapi.
Blaze-ing Through Campaign ft. Solohood (CDR + RH Variant)
CampaignCrown· Little Mermaid· Rapi: Red Hood· Red Hood· Helm
[Source: prydwen.gg Team Database] A very strong contender for the easiest to use Campaign team for players who prefer bossing modes over others, and are not looking to invest into the likes of VestiTU for example. Red Hood's burst generation ensures that the team can get to next burst before Siren's cooldown time. Not just that, but the addition of HelmT as a B3 support means you can do a special combo for players looking to push into higher deficits. While for the first few bursts you would be following the usual pattern of RRH->RH->RRH.., you can break this pattern by bursting with Helm once to heal the team to full (especially useful against Bronchus (farter)), and then using RH-B1 with Rapi's B3 to deal devestating damage to the final boss of the stage. This ensures that the team doesn't die to chip damage and confirms the kill. Substitutions: - [The same team described by another source — "Surf-ing Through Campaign ft. Rapihelm (CDR + RH Variant)"] [Source: prydwen.gg Team Database] The Red Hood variant of the Rapi: Red Hood + HelmTr team. Substitutions: - (Element: Water)
Blaze-ing Through Campaign ft. Alice
CampaignCrown· Rapi: Red Hood· Alice· Little Mermaid· Helm
[Source: prydwen.gg Team Database] A fully built Alice is a beast for Fire-Weak campaign. She scales well with basically every buffer, but this specific combo of Alice paired with Rapi has everything: Burst Generation with Alice, Helm and Siren, AoE Damage with Rapi and Alice's pierce, Single Target Focus DPS with Alice piercing through shields even! A very strong team and probably the best if not the best if not for Vesti's AoE being so useful in later stages where clearing a few small mobs such as Volleyballs becomes a neccessity. HelmT can even be replaced with Red-Hood or Maid Mast for making use of ATK buffs to counter higher CP Deficits! Substitutions: HelmT can be replaced with Maid Mast for her reload and ATK buffs, or Red-Hood for her B1 stage. Siren may be replaced with any other B1-CDR if you do not have her yet. (Element: Fire)
Blaze-ing Through Campaign ft. Asupi (CDR Variant)
CampaignCrown· Asuka Shikinami Langley· Little Mermaid· Rapi: Red Hood· Helm
[Source: prydwen.gg Team Database] Asuka is a strong DPS for fire, especially for stages without any shielders. No shields = no one to stop Asuka's teammates from making use of Asuka's core damage bonus for fire allies. Even if there are shields, Asuka deals higher damage to them, making them break early allowing for faster wave clearing. Not to mention, she can even hit raptures through shields thanks to her pierce! Substitutions: HelmT may be replaced with Red Hood's B1 or Maid Mast. Make sure at least one burst gen assist unit is in the team before replacing Siren for another CDR. (Element: Fire)
Zap-ping Through Campaign ft. Rapipi & Ein (CDR Variant)
CampaignCrown· Ein· Rapi: Red Hood· Little Mermaid· Helm
[Source: prydwen.gg Team Database] This team is one of the best Electric stage demolishers, featuring Ein's True Damage and reliable AoE clearing as well as Rapipi's insane AoE potential, HelmTr synergizes well with Ein's lack of Core Damage and supports the team with Burst Gen (which the other 4 units lack). She also triggers Crown's S2. Substitutions: - (Element: Electric)
Zap-ping Through Campaign ft. Rapipi & Ein (CDR + RH Variant)
CampaignCrown· Ein· Rapi: Red Hood· Little Mermaid· Red Hood
[Source: prydwen.gg Team Database] Similar to the HelmTr variant, but Naga is more accessible to new players, is free, and does not require Limit Breaks or Doll. The difference is that Naga does not buff all kinds of damage but buffs Core Damage immensely. Both still trigger Crown's S2, however. Substitutions: - (Element: Electric)
Real usage data
Source: enikk.app · as of 2026-09-13 — transcribed from the site and tallied by us.
Appears in 26 of the 214 real-usage teams we transcribed. (Solo Raid 23 · Tower 3 · Campaign 0 · PvP 0)
Usage-based rating
Ratings enikk derives from tracked usage. Its scale tops out at S over 6 steps, unlike the tier table above (prydwen, 9 steps topping out at SSS).
Most frequent teammates
Crown 15×· Privaty 12×· Snow White: Heavy Arms 7×· Cinderella: Crystal Wave 6×· Mast: Romantic Maid 6×
Representative real teams
Solo Raid 39 · Island Eater · Weak to Iron
1082 samplesMast: Romantic Maid· Cinderella: Crystal Wave· Anchor: Innocent Maid· EVE· Little Mermaid
Tower · Overspec
5678 uses · 3.1% of clearsLittle Mermaid· Crown· Rapi: Red Hood· Snow White: Heavy Arms· Anis: Star
Solo Raid sample counts are per-server, so they cannot be added up across teams.
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