I couldn't finish 'em. Looks like this's gonna get complicated.
Odin is a boss from Final Fantasy IV: The After Years. Odin is fought in the "The Crystals" Tale.
Odin is summoned by Cecil in the Baron Castle throne room. In this fight, it's pointless to attack Cecil. After dealing a certain amount of damage to Odin, Odin comes to his senses and the battle ends.