HELP! does anyone know the name of or remember this fucked up manga

It's a short manga from maybe 2016-2021 where a yandere highschool girl keeps a guy captive in the bottom of a trash chute/garbage area where no one can see him and just feeds him by lowering a bucket of food/slop on a rope from the only opening/garbage door near the top. One day the boy grabs the rope the girl lowered and then she gets pulled down into the trash area with him. They both have a twisted love for each other, have sex, and slowly die together in the trash area from lack of food and no one being able to find them. The girl trapped him in the garbage area cuz she loved him. I can't find this anywhere but ik for sure i read it here