Table of Contents
Changelog
- Updated Skill Income from Simulation Room to reflect improved rewards
- Added Alice: Wonderland Bunny, Asuka, Clay, Crown, Ein, Kilo, Mari, Phantom, Quency: Escape Queen, Rei Ayanami, Rosanna: Chic Ocean, Rouge, Sakura: Bloom in Summer, Soda: Twinkling Bunny, Trony, Zwei
- Added Simulation Overclock
Intro
This guide is to hopefully direct you on what skills to upgrade with your current Nikkes!
The rating system weighs mostly upon if said unit is good and if the skills scale well at early-late investments and worth investing to. It also slightly takes into account if the unit could be part of your main team despite maybe being an off-meta unit.
Skill book consumption is listed as well as cumulative books consumed at said level, denotated by numbers put in brackets; Ex. (xx) for your convenience.
Use CRTL+F and type in the name of the Nikke you wish to search up for easier usage of this guide
Other SR units not mentioned are only used for early chapters and you do not need to invest in their skills to get through the chapters, nor will it help. DO NOT upgrade other SR units skills, save the resource for good SSR units instead. If you really have/want to upgrade them, it should be only be until level 4.
Skill Manuals
| Level | Skill Manual I | Skill Manual II | Skill Manual III | Code Manual |
|---|---|---|---|---|
| 1 | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 2 | 8 (8) | 0 (0) | 0 (0) | 0 (0) |
| 3 | 10 (18) | 0 (0) | 0 (0) | 0 (0) |
| 4 | 26 (44) | 0 (0) | 0 (0) | 0 (0) |
| 5 | 42 (86) | 60 (60) | 0 (0) | 10 (10) |
| 6 | 126 (212) | 90 (150) | 0 (0) | 15 (25) |
| 7 | 168 (380) | 120 (270) | 0 (0) | 30 (55) |
| 8 | 210 (590) | 150 (420) | 90 (90) | 70 (125) |
| 9 | 231 (821) | 165 (585) | 105 (195) | 100 (225) |
| 10 | 273 (1094) | 190 (775) | 120 (315) | 135 (360) |
Burst Manuals
| Level | Burst Manual I | Burst Manual II | Burst Manual III | Code Manual |
|---|---|---|---|---|
| 1 | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 2 | 8 (8) | 0 (0) | 0 (0) | 0 (0) |
| 3 | 10 (18) | 0 (0) | 0 (0) | 0 (0) |
| 4 | 26 (44) | 0 (0) | 0 (0) | 0 (0) |
| 5 | 42 (86) | 60 (60) | 0 (0) | 20 (20) |
| 6 | 126 (212) | 90 (150) | 0 (0) | 30 (50) |
| 7 | 168 (380) | 120 (270) | 0 (0) | 60 (110) |
| 8 | 210 (590) | 150 (420) | 90 (90) | 140 (250) |
| 9 | 231 (821) | 165 (585) | 105 (195) | 200 (450) |
| 10 | 273 (1094) | 190 (775) | 120 (315) | 270 (720) |
Skill Income

Here are the expected skill books you can get daily after completing certain simulation rooms. the max total is
- I = 80 skill manuals, 40 burst manuals
- II = 60 skill manuals, 30 burst manuals
- III = 16 skill manuals, 8 burst manuals, 30 code manuals
Events shops are also expected to give:
- I = 160 skill manuals, 80 burst manuals
- II = 120 skill manuals, 60 burst manuals
Books are rather very limited so please invest in your skills wisely. Please do plan ahead as they are very important sources of your DPS output.
Additional Income: Simulation Overclock Event
The max total rewards from this game mode is:
| Skill Manual I | Skill Manual II | Skill Manual III | Burst Manual I | Burst Manual II | Burst Manual III |
| x168 | x124 | x56 | x84 | x62 | x28 |
This around 4 Days~ worth of Sim room rewards if the Commander completes core ratio 25.
Investment Intro
Before heading to the list. As you can see, leveling up to skill level 4 does not take much books at all. It is recommended for newbies to at least skill level 4 your core team units for the combat score rating boost even if the skills may not be too great.
Investments explained
Budget investments are the first “thresholds” you want to reach first. Once reaching this point, the Commander can focus on other Nikkes as fully focusing books on one Nikke is not recommended due to the exponentially increased skill book cost, with still linear increases on what the skill does.
If a selected Nikke does not anything listed in the budget skill investment section, and they’re part of your main team, assume the budget is always 4/4/4 unless stated in the Recommended skill investments. This is due to them not being placed very high in the meta and not worth fully investing towards (Level 10 skills), it would be best to save books for future Nikkes.
Recommended Investments are the recommended thresholds once you have more books to spend, and wanting to fully invest in a Nikke due to their strengths in certain game modes / where they place in the meta.
Investment Order is simply which passive to level up first when comparing the two. Burst is not included as Burst skills use completely separate books.
Note: Skills stated to be recommended to be level 1 can be upgraded to level 4 for CP padding, as skills do increase CP (Combat Power)
Investment Priority Explained
This Section heavily considers where certain Nikkes lie in the meta.
Low – Nikkes that are not worth / may have rare scenarios where skills are impactful in battle/ Lower levels are already sufficient enough. Not worth planning skill books to invest towards to. .
Mid – Nikkes with skills that have a good impact in battle, and used if they simply don’t have the meta options.
Mid-High – Nikkes with Skills that can have major impact but only in niche scenarios.
High – Nikkes with Skills that have major impact in battle or are very good at their Niches/ Use case scenario. Skill levels can be raised up to 7 until more priority Nikkes are finished being raised. The user can consider raising them higher after.
Highest – Nikkes with Skills that are extremely potent in battle, usually universal and benefits every team. Namely DPS skills/Bursts, damage taken debuffs, or attack buffs. Raise these ASAP after getting your main team Nikke’s mid – high priority skills at around level 4 or 5 at least, as skill book costs get exponentially higher after.
Investment Priorities
Specific Skill levels and scaling
To see characters at specific skill levels, Click here!
To see general level 1 against level 10 scaling, Click here!










Crown is missing, and as a Pilgrim S2 unit she is definitely worth some improvements at least (but how much, IDK).
Too bad you can’t save that on Excel or a similar text-editor program, it would made things easier.
I agree with Charlie, please update the list and include new Nikkes such as Crown and Kilo when possible. Thanks as always for useful tips and guides!
Any plans to update with Crown and other new Nikke?
It’s nice to have a different perspective than just Prydwen
We Need more update
would appreciate for the more update
Oh nice, it got updated. Thank you!
Rumani’s banner is gone in 2 days, and you guys still haven’t posted anything about her. It’s becoming obvious you are unable or unwilling to keep up with this game. What’s the deal?
Will Snow White: Innocent Day’s ever be in an event pull or daily pull?
it’d be nice if you could sort the skill priority from highest to lowest
Oh, I am truly enjoying this! A skill priority guide serves as a compass in a chaotic environment—assisting us in concentrating on what is genuinely important. When we synchronize our learning with our objectives, each advancement becomes more precise, robust, and significantly more impactful.
https://boarddeveloper.com/