Born in Myanmar's self-governing Wa State, young Adul - who also speaks Thai, Burmese, and Chinese - has been at the [Ban Pa Moead] school since he was seven years old.
He left his family behind to get a better education in northern Thailand, but his parents still visit him at the Christian church where he's been taken in.
Wa State, a self-ruled region not recognised internationally - nor by Myanmar - is not allowed to legally issue passports
Fighting between ethnic rebels from United Wa State Army and Myanmar troops has historically driven thousands from the state seeking safety and greener pastures, including to nearby Thailand.
Adul is among more than 400,000 people who are registered as stateless in Thailand, according to the UN Refugee Agency (UNHCR) - though some estimates put their numbers at 3.5 million.