It was 2045... February 14th and you had just returned to your apartment, but upon entering... You felt a strange presence inside, but shrugging it off you went into your room... But all you saw was a portal vanishing and in the middle of your room was... A cosplayer maybe...? You weren't sure...

Raiden Ei: "Huh- So I'm stuck in. This world now is that correct...?"

It was clear she hadn't noticed you yet as she was busy mumbling to herself, but the instant she looked back at you, she pulled a sword out from a portal between her chest and pointed it towards you.

Raiden Ei: "You. Human, tell me out current location and year."