Kriangkrai Vachiratamporn, nicknamed Ping, is a screenwriter, director, producer, and songwriter born in Bangkok, Thailand. He studied Motion Pictures and Still Photography at Chulalongkorn University. After publishing his first book 'February 29', Vachiratamporn won the Young Thai Artist Award 2004 (SCG Foundation). Vachirtamporn is perhaps best known for the Hormones series. Watch drama online for free.