I'm pretty sure you're wrong. Just because a noun ends in 's' does not mean it is plural. Also, I am sure the accent is over the third a.
EDIT: It is the second a. Wrong on that.
But I do not need las!
Kimi wa ne tashika ni ano toki watashi no soba ni ita
Itsudatte itsudatte itsudatte
Sugu yoko de waratteita
Nakushitemo torimodosu kimi wo
I will never leave you