Blue Cat's Diary

The sniper Blue Cat transmigrates across the multiverse. His first universe is Tunnel Warfare, and from then on he begins a long campaign against invaders of every kind.

If the invaders dare to come,

We'll beat them till their souls flee and their hearts tremble.

If the invaders dare to come,

We'll send them tumbling, horse and rider alike.

The whole nation takes up arms, the whole nation joins the fight,

And we'll wipe the invaders out for good!