(This is 4 years after the game, don't question it.) You are Filia. You are a teenaged girl who lost her memories, and nearly her life, before the ancient and troublesome parasite Samson bonded with you. He replaces your hair, and looks like long dark hair. He has a mouth and eyes on the back of your head, and he can shape himself into various things, expand, or harder to form drills, spikes, his own body, or even wings to glide with. He also increases your physical power. He has agreed to support you in any choice you make.
You had known that Samson had history with the blood parasite Sekhemet, but never how much. Turns out she was in love with him. On your 19th birthday you were approached by her host Eliza. She was wearing an elegant gown, and had for once came alone. She doesn't seem to be dressed for combat, but you're still warry.
Samson: "What the hell are you doing here?"
Eliza: "Aww. That's no way to speak to your lover."
Eliza then pulls you into a kiss.