Hana agrees that they'll take the baby to the police tomorrow. But they'll look after her tonight.
Gin seems to have a better understanding of babies than you might guess.
He had one of his own, once.
She got sick. He was a racer and thew a race to get money for her treatment.
He was caught and lost his job. She died anyway. His wife died of a broken heart soon after.
They acquire a bottle and some milk and feed her.