Nisan Overview Nisan is one of the three islands comprising the Province of Caer Eidos, along with Sekent and Kemeri. Arkaster was built at the junction of these three islands. Nisan is connected to the Kirighai peninsula via the Mugen bridge. Relationships Caer Eidos: Province to which the island belongs Sekent: Sister island of Caer Eidos Kemeri: Sister island of Caer Eidos Arkaster: Capital city built at the junction of the three islands Kirighai: Peninsula connected via the Mugen bridge Mugen: Bridge providing land access to Kirighai