Pharos is a character surrounded in mystery, he appears before the protagonists when they first arrive and requests they sign a contract that says they accept full responsibility for their actions during the events of the next year (i.e. during the events of the story) and as the story progresses, more is learned about him slowly. All the while the character has this creepy child thing going on as he speaks with a very hushed and drawn out tone.

My hope is that whoever plays Takuya would also play Pharos since the protagonist shares a voice with the character in the actual game but it isn't an absolute deal breaker if you can only play one of them.