Partners

Partners are a gameplay element added in version . Each Partner has their own skills and stats that affect various game mechanics. Partners can be selected by pressing the icon on the top of the screen which displays the currently active Partner.
From the splash text that appears when first opening the Partner select screen:
==Partner Select==
==Partner List==
==Stats and Skills==
Every Partner has , which primarily affect rewards earned after playing songs.
Stats vary between Partners and will change depending on their Level.
Partners also have skills that affect gameplay, and are categorised into one of several types based on their skill.
Note that the stats displayed in-game are generally rounded down from their internal values, where reward calculations use these internal values rather than the displayed values.
===Frag===
Influences the amount of Fragments earned for playing songs in Music Play mode and World Mode. A multiplier of FRAG/50 is applied to Fragments earned after a play, so every 1 FRAG above or below 50 equates to 2% fragments above or below the default amount (see Currency).
*Example: a FRAG stat of 78 corresponds to a 1.56x Fragment multiplier, or a 56% increase.
=== Step===
Influences the number of Steps earned after playing songs in World Mode. A multiplier of STEP/50 is applied to Steps earned after a play, so every 1 STEP above or below 50 equates to 2% steps above or below the default amount (see World Mode Mechanics).
*Example: a STEP stat of 35 corresponds to a 0.70x Step multiplier, or a 30% decrease.
=== Overdrive===
===Type===
A quick indicator of the Partner's characteristics. This is based on a Partner's skill.
There are three types of Partners (with a small handful of exceptions):
*Support - Partners with a skill that makes clearing songs significantly easier.
*Balance - Partners without skills, or whose skills have less impact on difficulty.
*Challenge - Partners with a skill that makes clearing songs significantly harder.
===Skill===
Most Partners have skills that alter gameplay and difficulty. Skills can be categorised by the effects they have on gameplay, and certain Partners have skills with multiple effects.
====Effects====
* EASY: Easy Recollection Rate is used, which depletes the Gauge less for LOST note judgements.
** All Partners with this skill effect are "Support" type. Some EASY skill Partners use variants of this Gauge.
** Clearing a song when this effect is active marks the song with a green C.
* HARD: Hard Recollection Rate is used. The Gauge instead starts at 100, but with a significantly higher penalty for LOST note judgements. Having the Gauge drop to 0 instantly results in a Track Lost. 
** All Partners with this skill effect are "Challenge" type. Some HARD skill Partners use variants of this Gauge.
** Clearing a song when this effect is active marks the song with a red C.
* MIRROR: The horizontal position of all notes are mirrored.
* VISUAL: Skills that activate visual effects during gameplay (e.g. Tairitsu & Trin, Awakened Lethe).
* AUDIO: Skills that activate audio-based effects during gameplay (e.g. Hikari & Seine).
* Other named skills (see individual Partner pages for details):
** OVERFLOW (unique to Hikari (Fracture)): Easy Recollection Rate is initially used, and transitions to Hard when the Gauge reaches 100.
** CHUNITHM (unique to Tairitsu (Grievous Lady) & Chuni Penguin): Visual skill that replaces the default Recollection Gauge with a CHUNITHM-themed series of Gauges.
** O.N.G.E.K.I. (unique to Luna & Mia, Saki, and Setsuna): Introduces an O.N.G.E.K.I.-themed Overdamage mechanic that grants Fragment bonuses upon reaching 100 Rate.
** MUSE DASH (unique to Marija): Visual skill that makes Sky notes fade as they approach the judgement area.
** Recall/Lose Emotions (unique to Ilith & Ivy and Hikari & Vanessa): Overlays the Gauge with "Emotion" segments that incur song-end stat bonuses/penalties based on Rate.
* Other unnamed skill effects:
** Skills that introduce variations on the basic default/Easy/Hard Recollection Gauges.
** Fragment effects, which provide a bonus or incur a penalty of Fragments at song end under certain conditions (e.g. Eto, Kou).
** Stat effects, which incur stat bonuses or penalties at song end (e.g. Ilith & Ivy), or for future song plays (e.g. Vita).
** Skills that affect World Mode progression by other means, either via direct Step bonuses/penalties (e.g. Mithra Tercera), or by affecting map Tiles (e.g. Amane, who ignores Random and Fixed Speed effects).
===Sealing===
Partners can be sealed by selecting their information panel in the selection screen. This sets all stats to 50 and deactivates their Skill. The panel can be selected again to unseal the Partner. Skills and stats are automatically sealed when offline or not logged in, with the exception of Hikari's skill. Sealed Partners will not gain EXP for plays in World Mode.
==Levelling ==
Partners can be levelled up by obtaining EXP from playing in World Mode or using Ether Drops. Levelling up Partners improves one or more of their (with the exception of Hikari (Zero)).
Partners start off at level 1 when obtained, and max out at level 20 (with the exception of Hikari & Tairitsu (Reunion), who start/cap at level 20/30). Certain Partners can be Awakened, which raises their level cap to 30. Partners can only gain EXP (Experience Points) while playing in World Mode. In general, the stat gain per level improves up to level 10, with diminishing returns afterwards.
=== EXP Computation===
After completing a song in World Mode, the selected Partner gains EXP based on the result rating:
\text{EXP Gained} = 6\times\text{Play Rating}
More information on Play Rating can be found here. All Partners share the same EXP requirements for levelling. Level 1 requires 0 exp (starting level), and the requirements increase for higher levels.
EXP Requirements
EXP Gain Sample Data
Data source: network intercepting
song_id 	difficulty	score 	time 	rating_after	constant	rating 	chara	exp
journey 	1 	9994302 	2018/11/4 10:01	1127 	6 	7.943019867	18 	4280.79217
journey 	1 	9994322 	2018/11/4 9:58 	1127 	6 	7.943220139	18 	4233.13405
memoryforest 	1 	10000702	2018/11/4 9:54 	1127 	6 	8 	18 	4185.47473
stager 	2 	9926186 	2018/11/4 9:51 	1127 	9.2 	10.51546478	18 	4137.47473
specta 	1 	9993581 	2018/11/4 1:45 	1127 	6.5 	8.435810089	18 	4074.38194
alexandrite 	1 	9979189 	2018/11/4 1:42 	1127 	7.3 	9.091890335	18 	4023.76708
dreamgoeson 	1 	10000737	2018/11/4 1:38 	1127 	5 	7 	18 	3969.21574
linearaccelerator	2 	9741045 	2018/11/3 19:35	1127 	9.6 	10.40348339	18 	3927.21574
tiferet 	2 	9637139 	2018/11/3 19:00	1127 	10.5 	10.95713043	18 	3864.79484
tiferet 	2 	9577230 	2018/11/3 18:50	1127 	10.5 	10.75743294	18 	3799.05206
===Ether Drops===
Ether Drops are consumable items that increase Partner EXP. Ether Drops are received as rewards in World Mode, although only sometimes displayed on the map rewards screens. 
Each consumed Ether Drop adds 250 EXP towards levelling up a Partner. At higher Partner levels, a single Ether Drop is not enough for a level up. Multiple Ether Drops may be consumed at once. Upon selecting the boost button, a confirmation window appears displaying the Partner level and % EXP after consumption.
Examples:
*A Partner at level 1, after consuming an Ether Drop, will reach level 5 immediately.
*A Partner at level 11 with 1660 EXP, after consuming an Ether Drop, will still be at level 11 with 1910 EXP.
==Awakening==
Awakening is a system where certain Partners can be awakened by consuming Cores. This will:
*Increase their level cap to 30.
*Change their Partner icon and appearance.
*Give them new skills (in some cases).
There are 2 requirements for awakening a Partner: 
*The Partner is at Level 20.
*The required Cores are owned, which will be consumed on awakening. Core requirements are listed below and on each Partner's respective page.
After awakening a Partner, a splash text reading "Awakening Reached" is displayed. Levelling a Partner past this point allows for further stat increase.
The following Partners can currently be awakened:
===Bypass===
 Awakened Partner skills can be bypassed via a button located next to their skill description panel. This button toggles between their Awakened and pre-Awakened skills, as well as their icon and art. Stats are unaffected by bypasses.
The most practical use of this feature would be for Partners with gameplay-altering skills which change after Awakening (e.g. Lethe).
===Cores===
==Trivia==
Category:Game Mechanics
Category:Game Information