Since the only information we have is 'luca is a gay story', Luca could be anyone. Maybe he's a young man who has just discovered his sexual orientation and is navigating the world around him. He might be facing difficulties at school, at home, or in his social circle because of being gay. It's also possible that he's an older character who has a long history of relationships and is now reflecting on his life as a gay person.
Yes, in many ways 'Luca' can be seen as a gay love story. The relationship between Luca and Alberto has strong undertones of a deep, affectionate bond that goes beyond a typical friendship, with elements that can be interpreted as romantic love.
Luca's story involves a sea monster named Luca who dares to venture onto land and experiences a world full of new challenges and wonderful connections. The plot is both exciting and touching.