Does Rin Go to Gehenna?

He then tosses Rin into the Gate, laughing uproariously as he declares that the boy will be reborn, welcoming him to Gehenna. ... After this, Satan is sent back to Gehenna as Fujimoto dies, leaving Rin to escape the Gate by himself.

What school does Rin Okumura go to?

When Satan kills their guardian, Rin enrolls at True Cross Academy to become an exorcist under Yukio's tutelage in order to defeat his father Satan.

Does Rin become the strongest exorcist?

As the spawn of Satan, Rin Okumura is one of the strongest characters in the world of Blue Exorcist. Unfortunately, Rin lacks training and skill, but with the help from those around him, he has the ability to defeat High-Ranked Demons and even Satan himself.