O-Negative ·รัก-ออกแบบไม่ได้The 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.

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