Toaru Kagaku no Railgun: Misaka-san wa Ima Chuumoku no Mato Desu kara
Plot Summary: Continuing after the Level Upper incident, another phenomenon torments Misaka. A phenomenon called "Someone's Watching," its effect feels like the electricity in one's body flow backwards. With the help of her friends, Misaka fights against the unknown enemy.
Other name: Toaru Kagaku no Railgun OVA; A Certain Scientific Railgun OVA; とある科学の超電磁砲 御坂さんはいま注目の的ですから