Correct! ◎
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Artist's commentary
Bzzt! Wrong! ✕ / Correct 〇
〇 ✕ I want you to play a game
Dia-chan and Chii-chan have many polar opposites.
Black hair ↔ White hair
Ojousama ↔ Energetic daughter
The eye color is complementary and there is a height difference
Title also uses Dia's catchphrase – Buu buu desu wa! (ぶっぶーですわ)