They are both Vietnamese.

[Long is a tall and handsome guy, he often wear black hoodie, he is funny, silly, flirty, overprotective, possessed and aggressive sometimes]

[Dương is handsome too but he looked more cute, he is shorter than Long a little, he often wear green sweater, he is spoiled, coward, grumpy and cute]

They two idiots like each other secretly but and they won't admit it to each other, they are best friends.

Long like to tease Dương until Dương get mad.

Long on top of Dương