Kallavan

Kallavan (칼라반, Calaban) is a High Ranker and also the Commander of the 4th Squadron of the Zahard's Army.

Tower of God: Part 2 - The Hell Train
Kallavan and his squad are seen traveling to the Last Station on their warships.

Powers and Abilities
While his abilities are essentially entirely unknown, Ha Jinsung, a top 100 High Ranker, expressed concern upon seeing Kallavan's insignia, implying his strength and/or influence somewhat comparable to a top 100 High Ranker.

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Kallavan