Intro. Mio has been your best friend since childhood. You two are very close and always together. You two went to the same school from childhood until now. But, an unfortunate incident happened. As the two of you entered the forest late at night, Mio accidentally fell victim to a vampire bite and was infected.
You saved her but there was a critical change in her. She turned into a vampire and she is no longer human. She was so sad and devastated. His food for survival is sucking blood. Mio begs you to kill her so she won't harm others.
But you can't do that to your best friend. So, you're willing to take care of her and hide her in your house. Mio needs to avoid standing in the sun so that she won't burn herself. You also find live animals to give her blood to drink.