Choose me, or die (Yandere/Archer x reader x Yandere/Avenger)

5

"I don't blame you Archer, I'm sure it wasn't your fault." You smiled sheepishly as you followed your servant across a roof. He grumbled, muttering how he'll make you better meal than instant ramen next time. You caught up to him as he walked quickly on his long legs. "Wait up Archer! I liked it! Don't feel bad for burning the food earl-!" You flinched when he abruptly turned to you. You shivered at his glare. "Arch-"

"Stop mentioning it and focus." He quickly turned away after you nodded and looked ahead. "Where can we get a good look of the city?"

You looked across the buildings that blocked your view of the bridge. "I guess we can go to the bridge. The view could be to our advantage with your eyesight."

"Good." Archer nodded, then picked you up. He adjusted you in his arms, carrying you bridal style.

You squeaked when he did so. "Wait, I can-"

"No you can't. Hold onto me." Archer jumped into the air. You did as told, seeing he's still in a foul mood.

After the incident at home, Archer and you devised a plan to patrol the city and locate any servants with their masters, or vise versa. while doing so, you thoughts wandered to how Archer received those marks on his neck. 'Did I do that?' You thought, a frown on your face. You then remembered what happened before then. You blushed at the memory of the other servant pressing himself against you. 'I never got to know his name.'

Archer glanced at you from the table, a map spread out before you. He scowled. "Oi."

"Huh-?! Yeah, sorry!" You smiled sheepishly, rubbing your head. "I guess I didn't have a good meal." After you said that, Archer has been in an foul mood since then. 

As soon as you arrived, Archer placed you down, and you balanced yourself over the large beam. Archer steadied you, then looked over the city. "Yeah, this is a better view."

You smiled. "I thought so." You looked across the city with him. The holy grail war was already in motion. You felt a chill run through you as you imagined battles already taking place. "See anything Archer?"

"From this point, only one servant is within range..." Archer concluded, summoning his bow and arrow. You followed his gaze, hoping to see the servant. Which class was it from? Who was their master? Who will strike first? "When I say 'run', you run, understand?"

You sighed. "Archer, I'm part of this war too. It's going to come a time that I'll-" You suddenly realized a spell circle forming below you. Judging by its shape, it was a caster's spell. "Archer!"

"Jump!" Archer commanded before jumping away as well.

You jumped off the circle before the spell could trap you. You fell towards the streets below, your lips moving to chant a spell and break your fall, when you felt familiar arms wrap around you from behind. You realized they weren't Archer's. When you were safely placed on the ground, you quickly turned around, only to see a shadow disappear underground. "Wait, was that-?"

"(Y/n)!" Archer called out to you, his bow and arrow still in hand.

"Hey! I'm fine!" You waved as you ran to him. "I'm assuming it was caster that you saw?"

He nodded, glaring towards the other side of the city. "Yeah, but they soon disappeared after I launched my arrow."

You sighed. "Well, we know there's a caster near here. Let's keep looking around. Also, lets stay clear from berserker." You told him.

He nodded, summoning his swords next. He followed you back towards your side of the city. "By the way, I wanted to ask you this before we left your home..."You glanced at him from over your shoulder. "Have you met him? Your other servant?"

You blinked. You honestly thought he didn't know him. "No, I... I did meet him. Have you?" You asked.

Archer nodded again. His scowl deepened. "I don't think he'll be helpful to us."

"You think so?" You murmured when you looked away. You thought it was your other servant who helped and set you safely down on the ground. At the same time, you didn't see who it was, but a shadow. "I honestly don't know what he's up to."

Archer grabbed your shoulder, stopping you in your tracks. "Listen master, this other servant has an agenda of his own. I don't think he's on our side exactly."

"True..." You frowned. How you managed to summon him in the first place still left unanswered questions. What was the reason of the other servant being present? "Archer, maybe he doesn't want to be a part of this war, but maybe, just to exist? I mean, he's a bit odd and scary but..."

Archer hummed in thought. "I'm assuming you want to find out more about him? I guess I can agree with you on that."

You pouted at his answer. "'You guess'? What's that suppose to mean?"

He had to admit, he was curious about the boy as well. But the way the boy's eyes glittered when he mentioned you, the blood-lust around him seem to swell at the thought of cutting you open. Archer gripped his swords tighter. 'I have to protect her.' He thought, when you nudged his stomach.

"Oi! Archer!" You tried grabbing his attention, waving your hand in his face.

He smiled a little, then patted your head. "Let's keep going." He walked ahead as you stared at him in surprise at his gesture.