Samael, of Time and Space,
Can take an hour to wash his face
And so, when he is feeling nice,
He'll use the same half-hour twice.
He doesn't feel that nice a lot
And, normally, his bathroom slot
Will last from ten past six to eight
And make his little brothers late.
oooooo
Lucifer, the King of Light,
Thinks second place is his in right
And so, from eight to nine o'clock,
He locks the very faulty lock
And gets a daily one hour lease
To have his morning wash in peace.
oooooo
Azazel, King of Spirits, third,
Will hurry in without a word,
Take barely any time at all,
Then rush back out into the hall
As if his tail has caught on fire
(He works a day job in Assiah).
oooooo
Egyn next: the King of Water,
Red from early-morning slaughter,
Nine fifteen to half past ten
Will lock the bathroom door (again)
And use up in his given hour
The last hot water in the shower.
oooooo
Iblis next; the Fire King,
Who sets his bedside clock to ring
At half past ten exactly so
That when the bathroom's his he'll know.
He leaves exactly twenty past;
The change before and after vast.
oooooo
King of Insects, Beelzebub,
Takes long enough within the tub
But when you add 'collecting' too,
(For Beelzy owns an insect zoo)
It's a wonder he comes out
(At twelve o'clock or thereabout).
oooooo
Astaroth, the King of Rot,
Tries not to waste the time he's got
So he is fastest at the sink
(He only stops to have a drink
And comb his hair and then he's gone)
He sometimes leaves the tap turned on.
oooooo
And last, Amaimon, King of Earth,
Who gives the room the widest berth
And spends as long as he can wait
In PJs and a rumpled state
And, when his older bros protest,
He'll skip the wash and go get dressed.
oooooo
A/N. For those who only know American English, 'tap' is 'faucet'. And, apparently, (I only found out through Fanfiction anyway) Mephisto Pheles' demon name is Samael.
All the demons listed above are correct according to the manga: I looked in the back section with the 'Hobgoblin, kin of Amaimon, King of Earth' things.