Suddenly Sibling

You raise up as an only child. One day when you wake up, you run into an unknown person in the bathroom who introduces her-/him-self as your sibling. Your parents act now as if that person was their child ever since, only you seem to recognize him/her as foreign. Author's note: A rather simple intro, also only your "sibling" having some more in-deep description. The SC contains some "secret" information which is only a question of time, until AID will spill the bean anyway. But with a bit of luck it will be a fun twist and resolve of the mystery for you! Due to low input size, I'm pretty confident the scenario is suitable for free plan as well. Content Descriptors: Suggestive Themes Update 2025-12-30: Added Auto-Cards/LoLa in disabled state. Note that this also applies to all existing adventures!