
One Piece chapter 687 brings the Biscuits Room duel to its end as Tashigi insists on facing Monet alone, only to be overwhelmed. When the harpy moves in for a kill, Zoro intervenes with his first shown burst of Armament Haki, and the two together finally bring her down.
While Sanji guides Tashigi's men deeper into the lab, he spells out for them the gap between his own code and Zoro's: he will never strike a woman, but his crewmate operates by no such rule. The reassurance lifts the Marines, who imagine the praise awaiting them. Back in the snowbound room, Zoro grumbles that Tashigi is in his way, yet she stands firm, certain he will not cut a woman after their old clash in Loguetown. He sits and lets her have the fight.
Reading his refusal as weakness, Monet grows cocky and buries Tashigi under a storm of snow attacks, eventually sinking her teeth into the swordswoman's shoulder. Tashigi clamps onto the harpy's head to keep from losing the arm. Just as the bite is about to turn fatal, Zoro slashes Monet's cheek with hardened Haki, freeing his rival and stepping toward the frozen enemy with quiet menace.
Admitting there are things he would rather leave whole, Zoro asks Monet whether any wild creature can be trusted not to bite. Paralyzed by terror, she cannot stop him as he cuts her clean in two. Because no Haki rides the blade, her Logia body endures the strike and she survives, though fear keeps her from reforming properly. One half rises to stab him from behind, and Tashigi finishes her off, ending the snow harpy at last.
The duel marks the first clear use of Armament Haki by Zoro in the series, applied to wound Monet while she held her Logia state. Tashigi displays the Soru technique of the Six Powers and, for the first time, calls out a named attack. Zoro also debuts a new single-blade move during the exchange.

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In Chapter 687, "Wild Beast," Monet grows overconfident after Zoro sits out the fight and buries Tashigi under a storm of snow attacks, eventually biting into her shoulder.
Zoro slashes Monet's cheek with hardened Haki in Chapter 687 just as her bite on Tashigi is about to turn fatal, freeing his rival from danger.
Zoro cuts Monet clean in two in Chapter 687, and although her Logia body survives since no Haki rode the blade, Tashigi finishes her off when one half tries to stab Zoro from behind.
Chapter 687 marks the first clear use of Armament Haki by Zoro in the series, which he uses to wound Monet while she held her Logia state.
The title of Chapter 687 echoes Zoro's warning to Monet that no wild, untamed creature can be trusted not to bite, right before he strikes her down.
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View on FandomThis content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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