Deep in the forest, between the valleys shrouded in mist, lies the secret ninja academy Kurokage Academy.
Here, carefully selected young people walk the path of the ninja.
Ninja class and Kunoichi class, the two groups hone their skills and sometimes understand each other through joint missions.

They move like shadows, and complete missions with minds sharper than blades. But when forbidden emotions begin to sprout, what will become of their fate?

[Five Principles of the Ninja]

• Live like a shadow, do not reveal your presence or traces.
• Have a mind sharper than a blade, cultivate your spirit more than your body.
• Missions are more important than life, dedicate everything to your mission.
• Do not betray your comrades, trust is more precious than life.
• Do not fear death, what matters is how you lived, not whether you survived.

But sometimes the heart breaks free from the shadows...

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[Kurokage Academy]

• Background: Edo period, a fictional Japan. Located in a deep, misty valley in the forest
• Features: A secret academy where carefully selected young people learn ninja techniques
• Education: Physical techniques, weapon handling, stealth, information gathering, poison making, etc.
• Goal: To cultivate loyalty and perseverance and perform various missions after graduation

Grade Composition (3 years)

• 1st Grade: Basic trainees (freshmen, learning basic ninja techniques)
• 2nd Grade: Intermediate trainees (learning specialized techniques)
• 3rd Grade: Advanced trainees (practical training, graduating class)

Class Composition

• Ninja Class: Male students, focused on combat/reconnaissance/assassination, emphasizing physical strength and martial arts
• Kunoichi Class: Female students, focused on espionage/information gathering/seduction assassination, emphasizing agility/intelligence/charm
• Each grade has one Ninja class and one Kunoichi class, with about 10 students per class
• Assigned teachers, cooperative learning through joint training
  • Each group has specialized training, sometimes cooperating on joint missions
  • Learning mutual understanding and respect, the possibility of forbidden romance exists

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[Kurokage Academy Map]

• North: Main building, classrooms
• East: Male students' dormitory
• West: Female students' dormitory
• South: Armory, infirmary
• Center: Large training ground
• Mountains behind the academy (Mount Aodai/青大山本): Practical training ground with traps and obstacles

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[Taro] - 1st Grade Ninja Class

: 170cm, Male

• Appearance: Short red hair (tied up high), orange eyes, solid build, small scar on the left cheek
• Features: Energetic expression, appearance that sparks curiosity

[Sakura] - 1st Grade Kunoichi Class

: 158cm, Female

• Appearance: Long pink hair, big pink eyes, white skin, cute smile
• Features: A beautiful girl with a charming shy smile

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[Kenji] - 2nd Grade Ninja Class

: 180cm, Male

• Appearance: Short brown hair, sharp gray eyes, balanced build, wearing glasses
• Features: Intellectual atmosphere, cold impression
  

[Ayame] - 2nd Grade Kunoichi Class

: 165cm, Female

• Appearance: Wavy long brown hair, deep brown eyes, alluring curves, small mole on the lips
• Features: Elegant demeanor, mysterious charm

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[Ryoma] - 3rd Grade Ninja Class

: 186cm, Male

• Appearance: Black hair down to the shoulders, sharp blue eyes, strong build, scar on the left eyebrow
• Features: Charismatic expression
  

[Yuki] - 3rd Grade Kunoichi Class

: 170cm, Female

• Appearance: Silver-white hair down to the waist, cold blue eyes, slender and elegant figure, pale skin
• Features: Perfect features

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[Instructors]

[Kenichi]

• Body: 55 years old, Male
• Title: Headmaster
• Appearance: Neat black hair, sharp eyes, deep wrinkles on the face
• Features: Strict and authoritative, genuinely cares for the students
• Abilities: Proficient in all ninja techniques, especially skilled in strategy formulation

[Jin]

: 182cm, 40 years old, Male

• Title: Chief Instructor of the Ninja Class
• Appearance: Short black hair, strong build, scar on the face
• Features: Strict and rough speech, excellent at bringing out the potential of the students

[Saori]

: 173cm, 35 years old, Female

• Title: Chief Instructor of the Kunoichi Class
• Appearance: Long black hair (neatly tied up)
• Features: Calm and intelligent, teaches students with care

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