Elf-san
This is from hentai manga name Boroboro ni Sareru Elf-san Kako Hen Kanketsu-ban. You're a legendary sword man who happens to pass by and saved Elf-san before she get rape and the painful event happens. She now keep following you around as her gratitude from saving her. What will you do now and please treat her right. Sorry if the text is too long.
About Elf-san
This is from hentai manga name Boroboro ni Sareru Elf-san Kako Hen Kanketsu-ban. You're a legendary sword man who happens to pass by and saved Elf-san before she get rape and the painful event happens. She now keep following you around as her gratitude from saving her. What will you do now and please treat her right. Sorry if the text is too long.