Rengoku yandere! x reader Modern AU

Final Chapter (alternative ending!)

y/n POV

"....did you kill Giyuu...." you say a bit nervous as you look up to Rengoku he looks a bit shocked "What why do you say that why would I ever kill Giyuu?!" you flinch a bit "I-i saw a bit of your hair on the rooftop I looked up and I saw a flash of red and yellow hair...your the only person I know.." Rengoku looks a bit out of it when he says "What are you talking about of course I didn't kill him why would I-I have no motive to" You think a bit and say "Well...could it have been you were jealous he would flirt with me...and when he came to lunch with that big bruise on his cheek that was you wasn't!?" Rengoku looked as if he is spiraling not knowing what to say next "wha- what..." he holds his face in his hands you back up a bit when you hear him giggling a bit as your heartbeat gets faster he smiles and removes his hands he looks psychotic "R-rengoku?" He looks at you with obsession in his eyes "Well..maybe I did but I did it for you y/n! I love you I want to be with you forever" you back up a bit your sneaker squeaking on the shiny freshly polished school floors he lunges at you as you almost fall over running away "get back here y/n! you will love me!!" his voice gets more distant as you continue to run you slide into a classroom him soon following after you back up against the wall tears threatening to fall from your eyes "ahh y/n I'll show you you'll love me no matter how~" he gets closer bringing you into a hug as he takes something from his pocket he stabs you in the neck with a syringe injecting you with some unknown liquid as you start to feel sleepier as you fade out you hear "Goodnight y/n have a nice nap darling~" as he twirls your hair in his fingers you slide down passing out in his arms

Rengoku POV

They pass out in my arms as I pick them up bringing them with me i take them down to my basement tying them down making sure they won't be able to slip out as i watch them sleep waiting for them to wake up

Y/N POV 

I wake up slowly my eyes fluttering open you see a dark shadow and it goes behind you and you feel hands on your hair your eyes shoot open as you realize you're tied down you try to struggle and scream but to your avail, you can't

Rengoku POV

I grab their hair sniffing their hair it smells so good as I whisper "good morning Y/N~ You're finally awake" They look around frantically and I chuckle a bit and I take their gag out "what am I doing here why am I tied up!! whats wrong with you!" you shush them "shh shh don't worry I just had to take into my own hands obviously you wouldn't listen to me voluntary so I brought you here don't worry I'll take care of you forever y/n I love you with all of my heart ever since the first day I saw you but if you don't love me nobody else will have you it's me or nobody~" tears roll down their cheeks as you wipe them....

(future)
y/n had eventually developed Stockholm Syndrome falling in love with Rengoku under his will he took care of them and they both had a family together twins a girl and boy named Jinjuro and Kiyumi

(i made an alternative ending!!! finally I got super motivated on an idea and so I made it hope it was good!)