Rean in Trails of Cold Steel 4

The question now since Rean is unavailable when the game starts I hope they don't ruin the game by introducing Rean at the mid-way or towards the end because then he was literally dumped as a Main character.

I also noticed in the snapshots that Rean doesn't get back his normal appearance he looks almost like a Vampire with Red eyes, and will his monstrous appearance frighten his friends.