High schooler Tatsumi Tatsunami works tirelessly to support his younger siblings in Tokyo until a sudden extraterrestrial encounter alters his body. To defend his family and planet Earth from invading cosmic forces, he must join forces with a specialized police force.

After surviving a bizarre alien attack that fuses a powerful cosmic weapon into his arm, Tatsumi Tatsunami is thrust into a hidden intergalactic conflict. He is recruited by Hajime Sharaku into Foreign Affairs Section 5, a secret police division dedicated to managing rogue extraterrestrial threats.

This complete series blends intense action with urban fantasy as Tatsumi balances his hectic domestic life with high-stakes battles. Together with Section 5, he fights to keep Tokyo safe from cosmic invaders.

In the Aliens Area manga, high schooler Tatsumi Tatsunami joins Section 5 to defend Tokyo from alien threats in this complete series.

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