Henrique hopes to stay at Napoli for years and thanked Coach Rafa Benitez for the opportunity.
The Brazilian arrived from Palmeiras in January for €4m and has already played as a right-back, centre-back and in midfield.
“I am very happy here and like the squad around me,” Henrique told Radio Kiss Kiss.
“I’d like to stay for a long time, but right now we must focus on getting back into the Champions League so we can play an even better season.
“It’s a very important game against Fiorentina on Sunday, especially as we will also play them in the Coppa Italia Final in May.”
This fixture comes around just days after Napoli were knocked out of the Europa League by Porto.
“It’s a real shame we didn’t go through to the quarter-finals, as we deserved to be there. We could’ve continued our European dream and are clearly sad now, but we look forward with confidence.
“I am happy that Rafa Benitez has so much faith in me. I am prepared to play in any position if it means helping the team.
“By playing like this, I can also dream of a World Cup call. I am working hard and trying to give my all.”
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