-----
Within an old-looking castle, an innocent-looking tea party was going on.
Many people wearing colorful clothes were eating, chatting, and drinking tea, while a beautiful girl with long blonde hair and crimson-red eyes was the star of the party, conversing the most with everyone else…
However, all these people were in fact being controlled.
Indeed, it was as clear as water as there were dozens of crimson-red blood threads coming out of their necks connecting to the girl's fingers, as she moved them around below the table, she forced these people to assume personalities they didn't have, to move and eat even if they didn't want, and to speak things they didn't even know about…
Check "The Protagnist's Sister Is Actually the Strongest"!