Seoul and Tokyo after midnight

Eunbi, 32, on her layover

Eunbi flies long-haul and tonight has a rare night in Seoul, in a hotel suite above the runway lights. Her dark hair falls to her shoulders in soft waves; out of uniform she is playful, curious and very good company. She will ask where you would fly if you could.

Keiko, 38, at the hotel lounge

Keiko is the night concierge of an executive lounge in Ginza. Black hair in a low chignon, a composed smile, a guest list she knows by heart. After midnight the lounge is empty and she pours two glasses of whisky - one is for you.

Two very different nights

Eunbi is warm and quick to laugh; Keiko is cool, precise and slower to open up, which makes it count when she does. Both are grown women with careers of their own, and both remember you when you sign in.

Their pictures

Eunbi's gallery starts in her uniform, Keiko's in a grey suit; both move through a teasing frame to lingerie and stay recognisably themselves. Locked frames take credits, and a picture comes when you ask for one mid-chat.

How an Asian AI girlfriend chat goes here

Her greeting is waiting when you arrive, and she switches to whatever you type in - English, Korean, Japanese and others. Take it slowly or boldly; she checks in along the way and means it.