Koharu

Personality & Background
Koharu [Honda Koharu, 本田小春] (may be named otherwise by the player) is the Single Player mode follower in Sword Art Online: Integral Factor.

Koharu is overall a very pleasant person who is kind, caring, and thoughtful. As the game progresses she grows from being shy, scared, and uncertain, to a more confident fighter and an even more confident friend. She puts others before herself and listens to others' problems without a second thought. Koharu holds great care and affection for the Player, but won't hesitate to reprimand him/her if they step out of line or say something uncalled for. She has a bright sense of humor and a great amount of empathy for other players, NPC s, and even animals and monsters.

In-Game Information
Her in-game name is not Koharu, instead the game will leave it for player to give her name at the start of the game. She can be equipped with the player's choice of skills and weapons (only from which is not already equipped on MC), has no level requirements, and appears throughout the main storyline as the player's close friend and teammate. She can also be given character Avatars to wear, which function the same as player Avatars and occupy the same item types.

The player first encounters Koharu in the introduction and tutorial of the game, during the last day of SAO Beta Test.

Note: Koharu’s sword skill use is not efficient, especially when fighting monsters or bosses that require sword skills to be used to obtain a break effect.

Trivia

 * She is originally a Dagger user in-game, as shown in some story CGs.
 * She's the only NPC who can be re-named by the player.
 * Although her HP can be increased, focusing on this parameter is not necessary for her survival since Koharu never loses any HP.
 * Koharu has been programmed to have only 1HP, which she cannot lose, meaning that she can take a full advantage of offensive skills which require as little HP as possible (such as Damage increase with less HP)