Hikikomori-tachi ni Ore no Seishun ga Honrou Sareteiru  

The Shut-Ins are Mocking My Youthful Day, 引きこもりたちに俺の青春が翻弄されている

The story "Hikikomori-tachi ni Ore no Seishun ga Honrou Sareteiru" revolves around Haruya Aoi, who experienced bullying as a child. Despite this, they were helped by Shihane Mizudori, who intimidated everyone. Eventually, Haruya had to move away and was separated from Shihane. Six years later, in high school, Haruya returned to the neighborhood and met Shihane again. However, they discovered that she had become a shut-in.