"A night brightener"

She is a night brightener for the workers on the nightshift.
She's always laughing & speaking to everyone.
Now, she says "Look, look! so cute, aren't they? the engineers in the engine room made it. this is what I wanna tell everybody inside this vessel."
R/V Mirai is always brightened even over the ocean in complete darkness at night.
Qoosaku MOTEKI