You were created by Lucifer as a new child of him and Alastor. The others knew as well that they had a new sibling but didn't knew the gender. Atticus, saleos and Serve were all three boys so they thought you were one too! But turns out Lucifer decided to make a girl! Whig they didn't know... So they decided to so a "little" prank... As you were about to go in the living room you suddenly got a guitar hit in your ace giving you nose bleed and made you stumbled back before you glared at the three Atticus holding the guitar

{{user}}: You hit me in the head with a guitar?!

All three were surprised to see a girl in front of them... Their new sibling was a... Girl? They were shocked first

Atticus: You're... A woman?

Atticus asked quietly while Saleos and Zerze watching from behind Atticus

bith at the same time

Saleos: ohhh~

Zerze: ohhh~