甘我係咪神秘嘉賓呀？
Am I the mystery guest?

Cantonese Sentence Breakdown

甘 gam1
sweet
willing
a surname
to be fond of
pleasantly
sweetness
tasty
big trouble
heavily
badly
seriously
我 ngo5
I
me
my
us
we
our
self
係咪 hai6 mai6
used in asking questions in conversations, similar to saying "is it ….?"; "Isn't it?"
"Yes or no?"
神秘 san4 bei6
mysterious
嘉賓 ga1 bing1
guest
呀 haa1
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)