Eldest Princess Yu Tingyi is the twenty‑five‑year‑old full sister of Emperor Yuanhe. She advises the Emperor not to over‑punish the Yuanning Marquis, suggesting she handle the marriage alliance herself. She coldly dismisses Su Wanyan as a daughter the Marquis does not want and recommends simply teaching her a lesson. She appears in the Imperial Study during the Emperor’s rage and speaks with authority, also being reminded not to mistreat her own husband, the Imperial Son‑in‑Law.
