Charn Chai is a teal baby Sumatran rhinoceros with brown eyes who belongs to Raya. He wears a flower collar similar to Raya's necklace and a golden yellow tail ornament.
Raya saw Tuk-Tuk playing with a baby rhino in a game of tag. Raya giggled as the baby rhino saw her and came up to her for a snuggle.
- Charn Chai means "good in fighting" in Thai.