Stalker-Ui Haru

There's a stalker next door and a crazy person living upstairs! Art student Kim Haru runs away from the goshiwon with terrible memories to a shabby one-room apartment. A month after moving in, a suicide occurs next door and a gloomy and suspicious woman moves in. Then one day, when Kim Haru returns home, he encounters the woman next door standing in his room with a kitchen knife... "Haru... I can do anything for you." (Source: Naver, translated) Note: Includesone extra chapter.