

“The same group of friends, same blood type and same lover.”
A group of five teenagers of the same blood-type 'O' become friends at art college. Prim has a crush on bad boy Art, while her friend Foon likes quiet Puen. The five form a band and survive freshman initiation rituals, but conflict erupts when romances break up the group's harmony.
Penpak Sirikul
Prim's Mother

Thamapat Seengamrat
Foon's Father

Thorung Jarungkijanan
Foon's Mother

Praphot Mayura
Puen's Father

Duangdao Jarujinda
Puen's Mother

Khomsan Nanthajit
Koe

Chayaporn Bunnag
Auan

Tharawit Chittjai
Ong-art

Siranat Ratchusanti
Mekin

Chaithat Mettichavalit
Jeab

Soisuda Kokpong
Nian

Arun Wacharasawat
Ong-art's Father

Kumaree Chinnawat
Ong-art's Mother

Songsit Rungnopakunsi
Nid

Duangkamol Limcharoen
Editor

Savitree Puthakaya
Prim's Aunt

Vanich Charungkitanan
Lecturer

Kerkkrai Unsonthi
Dean