Gin Tama, Vol. 13 by Hideaki Sorachi

It's samurai vs. aliens!

The samurai didn't stand a chance. First, the aliens invaded Japan. Next, they took all the jobs. And then they confiscated everyone's swords. So what does a hotheaded former samurai like Gintoki "Gin" Sakata do to make ends meet? Take any odd job that comes his way, even if it means losing his dignity.

After All, Your Enemy of Yesterday Is Still Your Enemy Today

Gin's Street Fighting Lessons Learned (Top 5)
1. Frontal wedgies are extremely effective.
2. Girls hit a lot harder the more innocent
they look (unless they are alien gorillas).
3. Only morons start fights in the Ninja Bar.
Yeah, only morons...
4. Using a bazooka is cheating (but it sure
settles things quickly).
5. No one hits harder than Shinpachi's
sister Otae when she's riled.