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Miss Monday

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Miss Monday is a Baroque Works agent also known as Sister who operates alongside Mr. 9 and Miss Wednesday on the Grand Line. She participates in missions that involve confronting targets and securing resources while demonstrating fierce loyalty to her allies during escapes. Miss Monday is recognized for her muscular build and combat prowess that leads to direct confrontations with pirates and fellow agents alike.

Appearance

Miss Monday has spiky hair and wide eyes that convey an angry expression during confrontations. She wears a checkered outfit featuring a heart emblem on the chest along with a net top. Her short dark hair and muscular build are visible from behind as she cracks her knuckles in preparation for action.12

Monday displays a fierce glare with sweat drops on her face when reacting to new information. She grips a spiral sword while tightening wire bindings around targets. Her determined expression appears in close-up panels during intense moments of battle.32

Monday receives inclusion in a compiled grid of six agent portraits that documents members of the organization. The arrangement places her alongside figures identified by distinctive hairstyles and accessories such as ponytails or goggles. This visual record presents her as part of the collective roster without additional individual detail beyond the group layout.45

Personality

Miss Monday maintains a confident mood even after navigation failures on the Grand Line. She issues commands with an aggressive tone to ensure her group stays alert against unexpected dangers. Her sarcastic questions highlight frustration with teammates who let their guard down.6

Monday dismisses targets as weak-looking brats and questions the need for elaborate welcome parties. She expresses frustration over town food shortages and the lack of whale meat. Her loyalty emerges when she chooses to block pursuers rather than abandon allies.78

Abilities and powers

Miss Monday overpowers Mr. 9 through physical confrontation inside the ship. She hurls a barrel toward remaining foes during group conflicts and swings a massive wooden pillar to create craters in the ground. Her raw strength allows her to grab opponents by the collar and slam them forcefully.91011

Monday assists Igaram by controlling wire bindings and confirms the seal before ordering completion of tasks. She positions herself between escaping allies and approaching enemies while wielding a large weapon to declare her intent to stop pursuers.128

History

Miss Monday participates in a drinking contest that lasts many rounds against a swordsman. During the event she remains hooded while consuming from a large mug placed beside her opponent. The outcome leaves her as the victor after sustained rounds of competition. She receives the additional designation Sister in official records connected to these activities.1314

Ship confrontation

Monday physically confronts Mr. 9 inside the ship and overpowers him during the exchange. She reflects on the dangers of the Grand Line after her navigation skills fail and warns the group never to let their guards down.96

Whisky Peak arrival

Monday appears on the ship after Miss Wednesday introduces herself. She immediately confronts Mr. 9 and emphasizes the unpredictable nature of the Grand Line after her own navigation attempts failed.15

Drinking contest

Monday loses a drinking contest to Zoro after many rounds while warning him to stop for his health. She appears hooded while drinking from a large mug beside him during the contest.1617

Welcome party

Monday questions the need for a welcome party and suggests crushing targets at the harbor instead. She reacts with shock upon seeing a high bounty poster and apologizes for misjudging pirate strength.718

Relationships

Miss Monday works closely with Mr. 9 during shipboard activities. She delivers a powerful kick that sends him flying after he fails to wake up promptly. Miss Monday then issues a warning to the entire group about unexpected dangers on the ocean.15

Monday assists Igaram by confirming the wire seal around a target. She orders him to finish the task and warns Sanji not to move while she tightens the bindings.19

Major battles

Miss Monday engages an opponent in a test of raw physical power during a later confrontation. She is defeated when the adversary applies superior strength to overcome her grip and force her to the ground. Onlookers express immediate disbelief at the result with repeated exclamations of shock. The scene highlights her reputation for strength before the reversal occurs.202122

Group conflict

Monday attacks remaining agents with a barrel and roars in battle excitement. Zoro calls out to her upon landing as she hurls objects toward foes.2324

Whisky Peak conflict

Monday blocks the path of approaching enemies while her allies escape. She grips a large weapon and shouts instructions before Zoro intervenes in the fight.25

Monday charges Mr. 5 with a massive wooden beam after declaring her loyalty to a friend. She is struck by an explosive punch that sends her crashing into the street with her outfit torn.2627

Manga sources

27 cited

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