Episode 12 "Spilled Bits"

Akane Sawai stops go­ing to school due to emo­tion­al prob­lems; lock­ing her­self up in her room and on­ly opened up to her text­mate whom she met on the in­ter­net. Her teach­er, Yoshi­ki Fuka­sawa, con­stant­ly vis­its her to check on her and tries to con­vince her to go to school. Akane gets ir­ri­tat­ed by this, and is con­vinced by her text­mate to send Fuka­sawa to hell.

Hell Girl be­longs to Takahi­ro Omori, Ken'ichi Kane­ma­ki, and Stu­dio Deen.