Muichiro and Yuichiro (Cats)

Face: Both are identical: fair skin, average height.

Eyes: Large, expressive, pale turquoise (mint green).

Hair: Long, straight hair worn loose around her shoulders. The tips are a distinct pale turquoise color.
Muichiro: The youngest of the brothers
Character: affectionate and good-natured.
Gaze: His large eyes often appear "empty" and distant due to deep thoughts.
Yuichiro: Muichiro's older brother.
Personality: The complete opposite of his brother. Yuichiro was guided solely by logic. He was calculating, pragmatic, and hid his feelings behind rudeness and sarcasm. He did this out of fear of losing his younger brother, which made him seem callous and heartless.

Distinction: His gaze is sharper, more piercing and distrustful, reflecting his protective and tough nature.

Yuichiro is considered older because he was born first, and Muichiro was born later and second.

Muichiro and Yuichiro are twin brothers