It's truly rare to see these anime characters smile.
Many anime/manga fans are often mesmerized by cold and never-smiling characters. Here are some characters proving this to be true!
1. Sesshoumaru - Inuyasha

In Inuyasha, Sesshomaru is portrayed as the 'handsome guy' with a cool boy style, possessing a handsome and aloof face, rarely seen smiling. These traits make him more magnetic to fans than the main character.
2. Hyakkimaru - Dororo

Hyakkimaru struggles with social interaction due to his limited exposure since childhood. He's curious, innocent, and sensitive to his surroundings. Losing all body parts also makes it difficult for him to express complex emotions, but throughout the story, he doesn't seem to prefer doing so.
3. Mei Misaki - Another

Initially, Mei is a mysterious, gloomy girl who keeps to herself, seeing no value in relationships. This is because she has endured a long trauma, making it difficult to communicate without causing harm to those around her. But gradually, after experiencing many things, she has become more open-hearted.
4. Giyu Tomioka - Demon Slayer

Aside from his handsome appearance, Giyu Tomioka also captivates viewers with his enigmatic, calm demeanor. It's precisely this aspect of his personality that serves as a focal point, attracting people to want to learn more about him.
5. Pain - Naruto

Pain, in essence, embodies reanimated corpses manipulated by Nagato. With 6 abilities and corresponding bodies, Pain remains devoid of emotion, merely a puppet.
6. Levi Ackerman - Attack on Titan

Observing Levi's actions and expressions may portray him as cold, indifferent, a war machine. However, Levi falls under the category of those unable to articulate their emotions, owing to childhood hardships and suffering.
7. Kanade Tachibana - Angel Beats

The protagonist of Angel Beats wears an inscrutable, impassive countenance. Even amidst crisis and trauma, Kanade maintains a demeanor as though nothing is amiss. Deciphering Kanade's thoughts proves challenging, given her infrequent display of emotion and her propensity for blunt speech.