Tohru

Tohru (トール Tooru) is one of the main characters in the series Kobayashi-san Chi no Maid Dragon.

Tohru is a female dragon possessing the ability to transform into a human girl. After Kobayashi rescued her from the verge of death, she falls in love with her and decides to work as her maid to repay her kindness.

Appearance
In her human form, Tohru has long blonde hair and red-orange eyes. She magically transforms her scales into a maid outfit, copying the uniform from a maid cosplay cafe (Maid Cafe Cozy) when she flew to Kobayashi's apartment the first time.

When in the private comfort of Kobayashi's apartment, Tohru wears her tail out, and on occasion, her wings. Outside, she hides both her tail and wings but retains her horns, though the people who would notice usually chalk it up to a form of cosplay. Tohru's dragon form appears as a big green European dragon with black wings and a light green underbelly. The height of her dragon form towers over Kobayashi's old apartment that's four stories high.

Background
Tohru was raised in a dragon family where everyone believed that humans were dangerous and dragons are supposed to kill all of them to survive. After an unexplained attack, she escaped from other world to Earth, barely alive due to major injures. She thought that she was going to die but a Ms. Kobayashi, while drunk, was passing by. Kobayashi pulled the big sword out of Tohru's body, gave her a drink and told her about her harsh life and told her come over and become a maid. Tohru fell in love with Kobayashi and decided to stay on Earth and serve Kobayashi as a maid.

Kobayashi
Tohru is deeply in love with Kobayashi. She does her best to serve Kobayashi as her maid everyday and hopes that someday they'll share feelings.

Kanna Kamui
Tohru and Kanna get along pretty well since they have known each other for a long time. Tohru even teaches Kanna about the human world.

Takiya Makoto
At first, Tohru hated Takiya because he got along too well with Kobayashi. After he takes in Fafnir, her hate for Takiya slowly transitioned into respect.

Lucoa
One of Tohru's old friends. Lucoa often goes to Kobayashi's place to check on Tohru's condition.