School is back in session! The Caligula Effect: Overdose boasts enhanced visuals and gameplay, including new characters, new scenarios, new endings, and the mysterious 'Forbidden Musician Route'! Play as the newly-added female protagonist, develop and execute flawless battle strategies with the Imaginary Chain, befriend and recruit over 500 students to your cause, or turn the tables and sabotage the Go-Home Club's efforts to return to the real world!