Assassin of Shinjuku

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April Fool's
Chaotic Evil
Max HP 11,637
HP Rank
Max ATK 8,661
ATK Rank
Base Atk1,443Base HP1,862
Max Atk 8,661 Max HP 11,637
Grail Atk 10,487 Grail HP 14,110
NP per Hit (%) 0.71%
NP when Attacked (%) 4%
Star Absorption 100
Star Generation per Hit 25.6%

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Servant Skills

Chinese Boxing EX

Increase your Critical Star Gather Rate (1 turn).
Increase your NP Gain (1 turn).

Show Info
Star Gather + 300%330%360%390%420%450%480%510%540%600%
NP Rate + 20%21%22%23%24%25%26%27%28%30%
CD 7 7 7 7 7 6 6 6 6 5

Available from the start

Unlocks after 1st Ascension

Doppelganger B+

Increase your Quick Card effectiveness (3 turns).
Increase your Critical Strength (3 turns).
Increase your Critical Star Drop Rate (3 turns).

Show Info
Quick + 20%21%22%23%24%25%26%26%28%30%
Crit Damage + 20%21%22%23%24%25%26%26%28%30%
Star Rate + 20%21%22%23%24%25%26%26%28%30%
CD 7 7 7 7 7 6 6 6 6 5

Upgrade via Interlude 1 (not available, ETA 2020/10)

Skillful Star A+

Decrease your Critical Star Gather Rate by 100% (1 turn).
Gain Critical Stars.

Show Info
Stars + 10111213141516171820
CD 8 8 8 8 8 7 7 7 7 6

Unlocks after 3rd Ascension

Class Skills

Presence Concealment C

Increase your Critical Star Drop Rate by 6%.

Ruffian A

Increase your Critical Strength by 5%.
Increase your Quick Card effectiveness by 5%.

Noble Phantasm

Juumenmaifuku Muei no Gotoku A

Deals damage to a single enemy.


Reduces Critical Strength for a single enemy (3 turns).

Show Info

Juumenmaifuku Muei no Gotoku

Ambushed from Ten Sides - As If There Was No Shadow

Rank Classification Hit-Count
A Anti-Unit 11

Deals damage to a single enemy.

Level 1 2 3 4 5
1200% 1600% 1800% 1900% 2000%
Overcharge Effect

Reduces Critical Strength for a single enemy (3 turns).

Charge 100% 200% 300% 400% 500%
20% 25% 30% 35% 40%

Assorted Info

ID 159
Cost 12
Gender Male
Growth Semi-Reverse S
Inst. Death Chance 49.50%
Damage Distribution Quick 16,33,51
Damage Distribution Arts 16,33,51
Damage Distribution Buster 100
Damage Distribution Extra 6,13,20,26,35
Damage Distribution NP 1,3,4,6,7,9,10,12,13,15,20

Attack / HP Growth

Stat Ratings

Interlude Quests

Quest Requirements Reward
Interlude 1 (ETA 2020/10)
Chapter Completion: Shinjuku

Ascension: 3

Bond: 5

✔ = Available ✖ = Unavailable

Ascension Materials


Skill Enhancement Materials

1 → 2 100,000
2 → 3 200,000
3 → 4 600,000
4 → 5 800,000
5 → 6 2,000,000
6 → 7 2,500,000
7 → 8 5,000,000
8 → 9 6,000,000
9 → 10 10,000,000

Costume Dress Materials

Costume Cost Materials
April Fool's

Bond CE

Bond Level 1 2 3 4 5 6 7 8 9 10
Bond Pts Req. 4,000 12,000 3,000 13,000 3,000 155,000 340,000 310,000 360,000 330,000
108 Stars of Destiny

When equipped on Assassin of Shinjuku,
Increase Quick Card effectiveness of all allies by 10% & Critical Strength by 15% while he is on the field.

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"My allegiance is long gone. Nowadays I'm just a lone man who fights with his fists."

Assassin of Shinjuku is an Assassin with a Quick ST NP, and a kit centered almost entirely around boosting his own critical performance and supplying critical stars.

Initially, Assassin of Shinjuku can alter his star gather rate, his star generation and generate a flat number of stars, all of which help him or his allies land critical hits. Notably, he has access to Skillful Star, which lowers his own star gather rate for 1 turn (essentially wiping out his base star weight) while generating a tidy sum of stars. This skill allows generated stars to be distributed to his party members instead, making him a good critical star generator for a party. If desired, he can also improve his own star gather rate with Chinese Boxing to take advantage of the stars himself.

Unfortunately, despite being able to manipulate his star gather rate, he does not have a way of boosting his own critical damage pre-Interlude, aside from his passive. He also lacks any other type of damage steroid before his Interlude, making his damage output as a whole underwhelming. In addition, he does not have any hard survival skills and will more than likely require support to survive against heavy-hitting enemies.

Post-Interlude, he receives a much needed Quick Performance Up and Critical Damage Up addition to his star generation skill. Moreover, the steroids last for three turns, which allow him to perform successive turns of buffed Quick/critical damage, which in turn enhances his NP Gain and critical stars generated, further allowing him to keep the crit train running.

Overall, Assassin of Shinjuku is a decent Quick critical star battery for the team, although overly specialized in critical star manipulation in his initial state, and performs better post-Interlude when he receives his Quick and crit damage steroid skill.


Good Critical Star Generation

Assassin of Shinjuku comes with a deck of three Quick cards, decent hit counts, a Quick steroid after his Interlude, boosts to his critical star generation on both his passive and active skills, and a Quick ST NP with a high hit count. Together, they enable Assassin of Shinjuku to generate a decent sum of critical stars for either the team or himself to use.

Critical Star Manipulation

Skillful Star reduces Assassin of Shinjuku’s own base star weight to 0 while generating a flat number of stars. This essentially allows him to “give” stars to party members. Skillful Star is particularly good with Servants that deal strong critical damage, and in conjunction with Merlin and the like, he can help supply a crit damage dealer with the critical stars necessary to get the crit party started. If he wants to use the critical stars himself, he can increase his own critical star gather rate by up to 600% with Chinese Boxing. Essentially, Assassin of Shinjuku helps to provide more flexibility with how critical stars are distributed to party members.


Low Damage

Despite his ability to generate critical stars and manipulate how the critical stars are absorbed, he does not have a way to buff his critical damage (apart from a small passive boost), nor does he have a way to buff his raw damage. This issue is partially solved post-Interlude. However, even after his Interlude, his damage is only mediocre, hampered by the 0.9x Assassin class damage modifier and a below average ATK stat. When compared to other Servants in the Assassin class, he does not provide any extra Trait-based damage like fellow 4* Carmilla. His NP damage is also relatively low compared to more easily accessible Servants. Assassin of Shinjuku probably is not the first Assassin to look to for damage, and rather works better as a star supplier who can deal some damage in a pinch.

Poor Survivability

Without an Evade/Invincible/Guts-granting move, and even lacking any type of Defense-boost or Heal, Assassin of Shinjuku can be rather fragile, particularly against enemies for which he does not have class advantage. He will need external support to last through tougher fights.

Lackluster NP Gain

Even with his single turn of NP Gain buff active while landing critical hits, his NP generation can be low. Even his 11-hit Quick NP does not provide much refund without external support (which marginally improves post-Interlude). As a result, in order to get an NP off quickly, he is somewhat reliant on both NP charge support and utilizing the critical stars he produces, which hampers his supportive ability.

Inefficient Niche

Pre-Interlude, all his skills are focused on either his critical star gather rate, or generating critical stars. These skills are ineffective when a team can already reach 50 critical stars (which is possible when fielding a full team of Assassins), so his skills are not always a useful contribution to the party’s performance.

Level Up Skill Recommendation

Assassin of Shinjuku’s post-Interlude skill, Doppelganger, improves his own performance remarkably by providing a much needed Quick performance up and critical damage up steroid. However, before his Interlude, his niche is primarily as an on-demand critical star supplier who can lend critical stars while suppressing his own critical star gather rate. The leveling order for Assassin of Shinjuku will depend on whether his Interlude is available or not, and whether one wants to focus on his on-demand star generation support (Skillful Star) or on his own damage (Doppelganger).

Chinese Boxing EX grants increased NP Gain and critical star gather rate for Assassin of Shinjuku. Both buffs increase with levels in this skill, but at base level the values are already decent. However, without steroids to his critical damage, granting more critical stars to Assassin of Shinjuku is not as effective. Levels in this skill are still useful to enhance its effect, but this skill is not as central to his performance until after Doppelganger is available and can be leveled later.

Espionage A is Assassin of Shinjuku’s pre-Interlude skill that boosts only star generation. However, maxing this skill really only effectively gives on average an extra couple of stars even in optimal situations (QQQ or NP chains), making it not worth investing in pre-Interlude. Post-Interlude, this skill becomes Doppelganger B+, which adds a Quick Performance Up buff (up to 30%) and a Critical Damage Up buff (also up to 30%), both of which scale with levels. This skill is definitely worth leveling first after his Interlude. Beforehand, this can be leveled last.

Skillful Star A+ is the skill that gives Assassin of Shinjuku the niche that he occupies as a critical star supplier. Levels in this skill will increase the number of stars generated (base 10, max 20). More stars will help ensure the critical damage dealer of the party will get enough stars to comfortably land critical hits. To maximize his effectiveness as a star supplier, this skill is worth leveling first before his Interlude is available.

Craft Essence Recommendation

OVERALL: Assassin of Shinjuku can manipulate where critical stars go, but he lacks a way to buff his critical hit damage pre-Interlude, and has NP gauge filling pains, which is where Craft Essences can come in handy. Starting NP Gauge / Quick Up / Critical Damage Up / NP Damage Up / Passive Critical Stars per Turn Craft Essences work well.

  • Kaleidoscope / The Imaginary Element: Having some type of NP charge support for Assassin of Shinjuku can make it much easier to get an NP off for him, as his NP gain is only mediocre even with his NP Gain buff active.

  • Knights of Marines / Golden Sumo: Boulder Tournament / Holy Night Supper: Hybrid CEs allow for both a bit of starting NP gauge and enhancement of his own performance.

  • Imaginary Around / Gandr: Quick performance CEs can help improve his overall performance as a damage dealer and star generator, sacrificing starting NP gauge for a higher value Quick boost.

  • Golden Catches the Carp / His Rightful Place: These hybrid CEs instead enhance his ability to perform as an on demand star supplier. Golden Catches the Carp in particular works well when used in conjunction with the Order Switch skill on the Chaldea Combat Uniform to provide a burst of stars on demand.

  • A Fragment of 2030: Star generation per turn alone are also a straightforward way to boost his performance as a star supplier.

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Other Info

Release Date
AKA/Alias/Nicknames Assassin of Shinjuku, Langzi, Yan Qing
Country/Place of Origin China
Illustrator Shimaudon
Seiyuu (CV) Nobuhiko Okamoto




Non-Limited - Available in the general summoning pool.

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