Season 1

Kai shows up in Hiro's hour of need, and helps him recover his energy.

Hiro asks Kai to go to the festival with him, but only if Hiro can find a way to get off work on time.

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Hiro shows a vulnerable side to Kai, and Kai expresses his feelings to Hiro.

Hiro's heavy workload prevents him from coming home at a reasonable time, which makes Kai feel disappointed.

Kai's time living with Hiro is coming to a close; how will Hiro try to get him to stay?