*sigh*, they are not officially together throughout the runtime of the game so calling Hugo "Kuya" is only respectable since his (mind you) an old man.
Please respect your seniors even if your romantically interested in them.
You do know that Kuya is also a term for respecting elders or people with higher position right? Like Japanese calling their seniors "senpai".
That was insane, please keep feeding us more 404 content 馃檹馃檹