What is smiling titan?

The Smiling Titan is a character in the anime and manga series Attack on Titan, written and illustrated by Hajime Isayama. It is also known as the Titan that killed Eren's mother. The Smiling Titan is a unique type of Titan that has a distinctive grin on its face. It has a slim build, is about 15 meters tall, and is covered in skin that bears a resemblance to the clothing it wears when it transforms. It is also known to be highly intelligent and able to communicate in a language similar to that spoken by humans. The Smiling Titan is responsible for the death of Eren's mother, Carla Jaeger, and is a recurring enemy throughout the series. It is also believed to have a connection to the protagonist, Eren Yeager, and the mystery surrounding his powers.