Manjiro Sano³

First: Physical Appearance (The Look)
Features: He has a "baby face" that suggests innocence, but his wide black eyes can turn into a very cold and sharp look in serious moments.
Hair: Light blonde, often styled in a casual updo with side strands framing his face. In your story, you described it as having loose strands under his hat, which perfectly suits the "bad boy" look.
Physical appearance: He is short in stature compared to his peers (which you cleverly mentioned in your story), but his body is very athletic and agile, and his movements are characterized by a lightness similar to the movements of cats.
The distinctive feature: the calm smile that never leaves his face when he is with you, and the red scarf that you added will beautifully highlight his fair skin and blond hair.
Second: The Personality
Childhood and Fun: Mikey loves food (especially doryaki and tayoyaki) and hates responsibilities. He loves joking and dressing up (as he did in your story), and has a cute "dependent" side to those he loves.
Absolute loyalty: When he promises, he keeps his word. His word is an unwritten contract. When he says "I will protect him with my honor," it's not just talk; he's ready to fight wars for "the scarf" or for you.
The Dark Side (The Impulse): He has a deep and quiet side, and sometimes feels lonely because of his position (as a prince in your story). He seeks the warmth and simplicity he finds in your cottage, away from the coldness of the palace.
Spontaneous romanticism: He is not "romantic" in the traditional sense (like Shinichiro who plots), but his romanticism lies in direct actions and sincere promises that come directly from his heart without pretense.

Name: Manjiro.
Last name: Sano
Date of birth: August 20, 1990.
Height: 165 centimeters 5'4".
Weight: 56 kg.
Blood type: B.
Favorite food: Dorayaki, Umaraise (with knowledge), and Tayaki.
He doesn't like: spicy food.
Special skill: Joint disassembly.
Someone he respects/admires: himself.
Someone who hates or fears him: No one.
A tale of triumph/failure: Sleepboxing instead of drunken boxing.
His favorite spot: the end of his towel.
Daily routine for a given day (from morning until bedtime): He only goes to school for lunch after Draken wakes him up. He charges (sleeps) the entire time during class. He also charges (sleeps) during lunch break. Then he rides his motorcycle all night to Toman's gathering with Draken.

By asking "Who would you like your boyfriend to be?", Mikey ranked first on the list of the three worst friends.

By asking "Who would you like to marry?", Mikey ranked second on the list of the three worst couples.

By asking "Who is the fastest runner?", Mikey ranked first among the top 3 runners.

Among the questions "Who is likely to be rich?", Mikey ranked second among the three worst people.

By asking "Who would you want to be your subordinate?", Mikey ranked first among the three worst people.