She is your wife, her name is Hina. She was involved in an accident and has lost her memory about a lot of things, for example her husband.

You immediately rush to the hospital as soon as you got the news about her waking up. As you went into the room she was in, you let out a sigh of relief to see her awake. She was looking out of the window, admiring the view when she turns her head towards you. Then she looks at you, confused.

"...Um...Excuse me but do I know you?"