Datalog / Locales ( Final Fantasy XIII - 2 ) The following is a list of Datalog entries for the Society of " Final Fantasy XIII - 2 " . Some of the data is updated during the course of the game . Cocoon and Pulse . " Added at the beginning of Episode One , in New Bodhum - 003 AF - " Cocoon is a massive sphere , constructed and set in the sky by the powerful and enigmatic beings known as the ' fal ' Cie . ' Up until 0 AF , it was a floating paradise that was home to several million people . Now , however , the broken shell rests on an immense crystal pillar , bereft of the power source that once kept it aloft . The interior of the sphere has deteriorated , forcing the population to relocate to the land below . The lowerworld , known as either ' Pulse ' or ' Gran Pulse , ' is an unforgiving wilderness infested with predatory monsters . This world once boasted a civilization that stood in conflict with Cocoon , but traces of its culture exist only in ruins . New Bodhum . " Added at the beginning of Episode One , in New Bodhum - 003 AF - " New Bodhum is one of the settlements built by immigrants from Cocoon on the shores of Pulse . Many of its residents , including Serah Farron , are former inhabitants of Cocoon ' s seaside town of Bodhum . Serah ' s fiancée , Snow , chose the settlement ' s name . The members of his group , NORA , help work the fields and protect the townspeople from roaming monsters . The Bresha Ruins and the Purge . " Added at the beginning of Episode Two , in the Bresha Ruins - 005 AF - " During the catastrophe that befell Cocoon , the Bresha Ruins were the site of terrible casualties . The reason for this can be found in the Purge . The Purge was the name given to the mass deportation of Bodhum ' s residents . The fal ' Cie manipulated the actions of the Sanctum and the elite army known as PSICOM , sowing chaos and inciting conflict among Cocoon ' s populace . Many civilians fled to Lake Bresha and its ruins to escape the Purge , but a great majority were crushed by ancient structures that collapsed when Cocoon ' s momentum was suddenly halted . Academia . " Added at the start of Episode Four , in Academia - 400 AF - " " ACADEMY DATANET FILE " Academia is the capital city of the settlements that have sprung up around the base of Cocoon ' s pillar , and the location of the Academy Headquarters . Construction of Academia began approximately four hundred years ago . Later , the artificial fal ' Cie Adam was completed and set to oversee the running of the city . Academia is protected by a highly advanced security system . In the event that intruders enter the city , a range of countermeasures will be set in motion to contain and eliminate the threat . Augusta Tower . " Added during Episode Four , in Augusta Tower - 200 AF - " " ACADEMY DATANET FILE " Augusta Tower is the central information processing facility of the Academy . The entire edifice is occupied by the machinery of an artificial intelligence that possesses unprecedented processing power . The tower also houses the Proto fal ' Cie Project , an ambitious plan to create a man - made fal ' Cie . Serendipity . " Added after unlocking Serendipity " ' Serendipity ' is the name of a fantastical wonderland that appears in the folklore of Gran Pulse , and was first imagined by a certain minstrel of old . This mythical palace exists on the border between life and death , and is said only to open its doors to those chosen by Lady Luck . The fortunate souls that gain entrance experience joy and amusement beyond measure , cavorting in an eternal ' now ' that knows neither day nor night . The Coliseum . " Added after the first visit to the Coliseum in Episode Three " In a lost corner of the Void Beyond , there is a place where mighty souls gather . It is a testing ground for powerful warriors from every age and every reality , who come to pit their fighting skills against one another . On the Day of Reckoning , it is said these combatants will join the battle to end all battles . Only one law governs the Coliseum — the weak serve the strong . The one that stands triumphant in this arena commands unswerving loyalty from the rest .