Helpppp

Looking for a shoujo romcom can’t remember the name. The plot revolves around two high schoolers who end up having to share an apartment, I think bc of some issues with the building or smt. They end up liking each other but don’t want to go further until they graduate and put up a curtain in the bedroom to divide it?? I know this isn’t a lot to go off, the main guy is talk with black hair and I think the girl has long brown hair.

If you can find this u r a Saint #－.－)