Milan
While Oshikuru would be able to reach the guard and deliver a powerful blow to the shoulder, the armor helped disperse some of the force, only causing the guard to be thrown off balance as he falls over to the ground. He would groan in pain, but frantically get up and continue running again, screaming "Somebody, please! The mayor is in danger! Help us!" 

As Katachan expected, the guard would infact injure her at close range, but would be caught off guard as she lowered her head and headbutted him from the chin, causing the blade to sink into your shoulder instead. The guard would fall backwards, clearly in a daze, unable to regain his balance as of the moment.
Holly
*Oshikuru proceeds to strike a pressure point in his guard's neck using his open hand in a spear-like fashion. Seeing that all the guards are down, he walks to the guard who was struck in the thigh and karate chops at his neck. He redraws his blade and rushes towards the three wealthies*
Rosalie
*Katachan gritted her teeth and held back her scream of pain as the blade remained buried in her shoulder. She knew removing it at the time would only cause more severe bleeding, thus she suddenly picked up her mace and brought it down with thundering force onto the swordsman knees at an angle so she could hit them just right with her good arm with mace in hand.* "Fucking... Piece of shit... Fucking bandit..." *She'd muttered out an ignorant insult out of agony and heard one of the guards screaming for help... And something about a mayor, but she just thought the man was a loony bandit and ignored it for the time being then went to follow Oshikuru.*
Milan
Oshikuru would strike the guards neck but the av entail with throw his aim off a bit as he wouldn't be able to clearly see the neck. With a crack the guards head would tilt sideways with blood spilling from his mouth as he falls the ground, twitching for a moments before going limp. As for the guard laying on the ground, as you walk over you would see that he was already dead. The broken thigh must have accidentally punctured an artery, causing enough internal bleeding to kill the poor man. 

The guard being dazed on the ground would only be able to howl in pain as you crack his kneecap.

As you two look for the wealthiest you see they are a distances away and you see the wealthiest getting on a boat. The guard is assisting them to speed up the process, but upon see you two running toward them, he would pull out his spear and grab a nearby fishing net and run toward you both, leaving the wealthy 3 men to get the boat ready on their own.
Holly
"Katachan, run to the right, I'll go left" *Oshikuru dashes to the left at full speed, hoping that the guard can't fight both*
Rosalie
"No need for that... His a fool for coming at me straight on." *Katachan would suddenly rear back the mace with her good arm and launched it directly at the guard in a throw once he was close enough to her that he'd have a hard time dodging. She was hoping once and if it did hit him the 'heavy' enchantment on the mace would activate and trigger the weight against the impact and do some heavy damage.*
Milan
Once the guard get in a close enough distance he would actually throw the fishing net he brought with him at the two of you. Oshikuru of course was too quick for it and was able to avoid it by dashing to the left. Katachan however would be in the direct path of the net. However throwing the mace would push against the net and prevent it from reaching her and continues its momentum toward the guard. However, the net would've dispersed enough of the hammer's force to make it travel slow enough for the guard to dive to the right. He quickly gets up breathing heavily
"What the hell! Are you trying to kill me!"
Holly
*Oshikuru tries to punch the guard in the face, and continues to run to the wealthy people if successful*
Rosalie
*Katachan would suddenly run up onto the guard while Oshikuru threw the punch and tearfully torn the sword from her shoulder while bringing it down in a slash toward the man's neck. The wound would now be bleeding more severely and inflicted a bit more pain altogether, but nonetheless she seen it as a necessary thing to do at the time.*
Milan
The guard would focus primarily on Oshikuru thinking Katachan was disarmed, and raise his forearm to cover his face from Oshikuru's blow, successfully blocking it. However he would be greeted with a solid smack to the neck from Katachan's swing that would send him rolling over a couple of feet. It would seem the aventail around his neck managed to save his life. He get's up and runs over to where Katachan threw her mace and picks it up. 
"If you don't leave now, I'll chuck this thing into the ocean!" 
At this point the wealthy individuals have all gotten on the boat and looks like they are about ready to set sail as they start to untie the boat from a nearby stone.
Holly
*Oshikuru hooks the guard's leg using his own, in an attempt to trip him. Oshikuru then runs back towards the boat*
Rosalie
"....That is the most foolish threat I have ever heard in my entire life! We're not even that far off the beach!" *Katachan was already enraged from her injury, now that idiot wished to threaten to throw away her most prized belonging? Like hell he was going to leave this un-scarred now. She'd suddenly dash in as Oshikuru went to trip him and used both her arms while in an intense pain to dead-lift the man by the crotch with her hands crushing with all due intent to destroy his manhood and at the same time tossing him away from the water if possible while a trail of blood followed her movements painting the sand red from her shoulder wound.*
Milan
*As Oshikuru approaches him he swings the mace into the coastal waters. It can still be seen from where you are, but would take some time to run over and grab it again. The man would then be tripped up by Oshikuru, causing him to fall over into Katachan's deadlift. He screams in agony as his groin area pours blood all over your arms as you toss him toward the woods. He would lay there clutching what remained of his manhood crying.*

*As Oshikuru started to run toward the boat he would see that at this point the boat had started to set off to see, now 10 ft away from land. The wealthy individuals would be looking behind at you with looks of terror, huddling together with their fishing gear pointed at you in a childish attempt to scare you away from coming near.*
Holly
*Oshikuru runs at full speed, he couldn't let his money get away. Sprinting at 27 mph, he jumps when he reaches the water's edge, hoping to make it on to the boat*
Rosalie
*Katachan would be fucking trucking it for her mace visibly crying... In pain and in utter agony that her prized weapon was just ragged dolled into the ocean. She'd dive into the water like a madwoman hopefully grabbing it if possible and then returning back to the beach to watch Oshikuru go after the boat... And applying a piece of garment to her shoulder wound as a makeshift bandage.*
Milan
The boat would be out 20 ft into the water when Oshikuru would make his leap. With his impressive speed however, he would be able to land on the boat. The downside? The sudden impact of his body on the edge of the boat would cause it to tip over, dumping everyone overboard into the somewhat deeper ocean water. The wealthy individuals would be gasping for air as they struggled to maintain themselves at the surface, trying to make it back to shore screaming "Help! Somebody, help us! There is a mad man trying to kill us! Help!"
 
Katachan would be able to get her mace back, it was only coastal waters after all so not that deep. She would be able to make a makeshift bandage as well, just in time to see Oshikuru knock the boat over and see the men struggling to make it back to shore.
Holly
*Oshikuru isn't great at swimming, but he isn't terrible. Knocking over the boat wasn't exactly the plan. He roars out, hoping that the rich men will try to swim to shore, as he swims to the nearest one*
Rosalie
"...Hey, I think those bandits might have had enough... How about we call it a day and simply bring them in?" *She'd speak over to Shikuru as she walked over to where he was about to be on the shore, she was sure the man were bandits... Or at least that's what she wanted to keep telling herself.*
Milan
Unfortunately with Oshikuru's armor and gear, the weight would tremendously slow him down in the waters, forcing him to put more effort to stay afloat, allowing the armorless wealthy individuals slowly get away from you as they make it to 10 ft away from the coastal waters while you remain at 15ft away. 

The wealthy individuals however would see Katachan and approaching and would start weeping and bombard Katachan with questions and please. 
"Why are you doing this? What did we do?!"
"Who sent you?!"
"Do you realize you are attacking a political figure!" 
"Please, have mercy! I have a family!"
Holly
*Oshikuru continues to swim, this time much more rapidly to catch up* "Don't worry, you'll live!"