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Kasumi Sumika
General information
AliasSerene Haze
Affiliation and military information
CraftNEXT Ciliegio
Real world information
AppearancesArmored Core 4
Armored Core: For Answer

Kasumi Sumika is a LYNX that appears in Armored Core 4. She is the #16 Original. She later appears as Strayed's operator in Armored Core: For Answer.

In-Game BiographyEdit

A sparse record leaves much of this female Original a mystery. Her craft, made of Leone's latest parts, is considered the strongest in the company's arsenal.


She retires some time after the Lynx War. She returns a decade later as Strayed's Operator and semi-teacher in Armored Core: For Answer and goes under the name Serene Haze. 

NEXT CiliegioEdit

NEXT Ciliegio

NEXT Ciliegio

Kasumi pilots a light pink Y01-TELLUS model NEXT equipped with Melies and Leone weapons.

Note that Ciliegio has only ONE EN weapon, a LR02-ALTAIR laser rifle in her left hand.

The Right Hand holds a powerful RG01-PITONE Railgun, a heavy weapon with accuracy and range that would make most people believe it was made by BFF, while it is in fact made by Leonemeccanica/Melies. The Left back slot holds a radar and the Right slot holds a light BM03-MEDUSA AS missile launcher.


  • Defeat White Glint
    • Commence mission. Take out the enemy NEXT White Glint. This battle is for rank one. You can't go any higher. Show me what you can do.
    • Confirmed. White Glint has been... Wait! It's moving again?! What kind of NEXT is this?
    • Is he sinking into the ocean? Just like that? Unbelievable. Looks like it's one on one.
    • Confirmed. White Glint has been destroyed. Mission complete. You... you're more than I dared hope for.
  • Defend Line Ark
    • Commence mission. Cooperate with White Glint and eliminate the League NEXTS. We've detected two enemy NEXTS: Stasis and Fragile. Stasis... it's Otsdarva, the rank 1 Lynx! The League isn't holding back.
    • Confirmed. Fragile has been destroyed. Mission complete. In the end... only you remain. I can't believe it. Just a brief moment of relief. Let's make the most of it.
  • Defend Arteria Cranium
    • I didn't realize you would sacrifice so much... We could use more soldiers like you.
    • Is that... a Jet-type? But how did it manage to...? It shouldn't be possible...
    • And mankind will be safe to dream, floating above the clouds. Is that your answer? Then so be it.
  • Destroy Arteria Ulna
    • Commence mission. The target is a good distance above your position. Start climbing. You know what you're doing, what it will mean, don't you?
  • Attack on Arteria Cranium
    • Target the two NEXTS; Reiterpallasch and My Bliss. You've chosen your Answer. Now see it through.
    • My Bliss has been destroyed
    • Reiterpallasch has been destroyed.
    • Thermidor...! You betrayed us! This was your fight to begin with!
    • So ends phase one of the Closed Plan. You are the sole remaining ORCA member.
  • Defend Cradle 03
    • Commence mission. Protect Cradle 03. Millions of lives are at stake. You cannot fail.
    • Commence mission. What?! They've already started attacking! Quickly! Protect the Cradles! How can such a thing!
    • Enemy detected. They're closing in. Enemy NEXTS, and multiple combat drones!
    • Mission failed. Don't be too hard on yourself. If you couldn't stop them, no one could.
    • Confirmed. Enemy NEXT destroyed.
    • Confirmed all targets destroyed. Mission complete. But it's too soon to celebrate.
    • Confirmed all targets destroyed. Mission complete. Well done. You were their savior today.
  • Destroy Cradle 03
    • Just know how to kill huh? Nothing else? That's too bad. It's time for you and I to go our separate ways.
  • Occupation of Arteria Carpals
    • To end up facing you like this... Too bad. You walked right into my trap. Stand still so I can cut you down.
    • Of course... I stood by your side for so long... If it's my time, who better than you to deliver the final blow.
    • I have so much more to teach you. Are you looking forward do your next lesson ?


Her craft is equipped with Leone weaponry that has high precision and velocity, as well as a missile launcher. Her rail gun is highly accurate in mid to short ranges, so dodging her attacks can be ineffective. However, her craft is somewhat slow, so it is possible to outmaneuver her with fast, lightweight NEXT. Her NEXT's weak point is ballistic weaponry since her craft have very high EN defense, but little solid defense.

Kasumi Sumika appears in the mission "Occupation Arteria Carpals" on hard mode. Grenade launchers, machine guns, shot guns, sniper rifles and bazookas all do good damage to her craft, especially high impact weapons such as Bazookas, as they can stun her on impact.

Her craft appears In the test mode, so you can test your tactics there.


  • R Front Stabilizer
    • Head/Top: None
    • Head/R Side: None
    • Core/ R Upper: None
    • Core/ R Upper: None
  • L Front Stabilizer
    • Head/Top: None
    • Head/L Side: None
    • Core/ L Upper: None
    • Core/ L Upper: None
  • L Rear Stabilizer
    • Core/L Lower: CLS01-TELLUS-A
    • Arms/Left: None
    • Legs/Back: None
    • Legs/L Middle: None
    • Legs/L Lower: None
  • R Rear Stabilizer
    • Core/R Lower: None
    • Arms/Right: None
    • Legs/Back: None
    • Legs/R Middle: None
    • Legs/R Lower: None


  • Kasumi's NEXT appears in ACSIS test mode.
  • Kasumi is the operator for the player LYNX in Armored Core: For Answer, however she uses the name Serene Haze as her operator alias.
  • If the player decides to take the Destruction Path, they will face her in Hard mode as one of the five NEXTs in "Occupation of Arteria Carpals", reinforcing the fact that she is indeed the same Kasumi Sumika from Armored Core 4.
  • Sumika is also a semi-operator for the player in Armored Core: Project Phantasma. However, as both games take places in different universes, it is highly unlikely their is any relation between the two.
  • Kasumi Sumika's name is most likely a reference to Kagami Sumika and Kasumi Yashiro from visual novel series MuvLuv by âge.
  • She talks to Strayed in a teacher-like manner, which is unusual for operators. This is also shown as you progress throughout the game where she talks to Strayed with increasing admiration and respect.
  • Kasumi Sumika's name is an anagram; "Kasumi" can be spelled with the letters of "Sumika" and vice versa.
  • "Serene Haze" is a possible literal translation of Kasumi Sumika.