Fire Emblem is a tactical role-playing game franchise developed by Intelligent Systems and first published by Nintendo in 1990. There are currently 16 main series games with 4 spinoffs.
Although there is no "canon" appearance, Fire Emblem is generally depicted with blue hair and armor of some sort.
Fire Emblem is helpful to a fault, always wanting to do the best for their friends. They are determined and once they have their mind set on helping someone, you cannot change their mind. They are, however, quite skilled in coming up with plans and strategy, so even though they may be difficult to convince, they are a valuable ally with their quick wit and logical way of looking at things.