They didn't have any cannon, so they used long-ranged magic to defeat the enemies which was a battle method imaginable from the marks remained.
Then, Hajime's guess was proven to be a fact when he and Kaori were halfway through the ship's graveyard.
— UoOOOOOOOOOOOOOO!!!!
— WAaAAAAAAAAAAAAAAAA!!!!
"-!? What the!?"
"Hajime-kun! The surroundings are—!"
When they felt they heard shout of many men all of a sudden, the surroundings scenery began to distort. Hajime and Kaori stopped walking from the surprise and they observed the surroundings to observe what was happening. The surrounding distortion became even more intense and before they were aware of it, Hajime and Kaori were already on a ship's deck, above the vast ocean.
Following that, they looked at their surroundings, it was not the ship's graveyard, but hundreds of sailing ships divided into two groups, confronting each other. Above the ships were people raising their weapons while shouting.
"Th-The heck is this..."
"Ha-Ha-Hajime-kun? Am I currently inside a dream? Hajime-kun, you are here, right? Right?"
Both Hajime and Kaori were taken aback, but they somehow managed to get out of their confusion, however, they weren't able to look at their surroundings.
While they did so, a big spark rose into the sky, generating firework-like loud voices followed by the hundreds of ships moving out simultaneously. The fleet on the side of the ship Hajime and Kaori rode on also moved out after the firework rose.
And when the ships approached a certain distance, they used the momentum to ram the other ships used its bodies, while magic were also fired.
GOoOOOOOOOO!!
DOoGAaAAAN!!
DOBAaAAAA!!!
"Owh!?"
"Kyaa!"
Flame bullets fired accompanied by roaring sounds and created holes in the ships' bodies. Huge tornadoes advanced aiming at the masts. The sea's surface froze, stopping the ships. And bullets of gray-colored sphere instantly petrified everything.
Even the deck Hajime and Kaori were on was hit by the flame bullets and began to blaze up grandly. The ship's crews immediately activated magic to draw up the sea water and extinguished the fire.
It was literally a battlefield where innumerable people and ships fought on. The fired magic clad in killing intent grazed their skins.
Hajime and Kaori absentmindedly watching these spectacle, and once again fire bullets fired from behind them. The bullets' courses were aimed straight towards Hajime and Kaori.
Hajime buried his question of why did they suddenly were involved in this war in his head, and he pulled out Donner because it was OK to kill everyone because they attacked first. Thus, he intercepted the fire bullets using the railgun.
The bullet fired was accompanied by explosive sound and a flash, but unexpectedly it didn't even hit the flame bullets much more intercepting them. The bullet flew into the sky, and it disappeared.
"What!?"
Raising surprised voice for the nth times, Hajime embraced Kaori by his side and began to evade.
"Wait, I will obstruct them! "Light Severance"!"
With Kaori's chant, the beginner-level defense magic of light attribute appeared.
Hajime tried to evade because the unknown magic kept going even after their cores were hit, but Kaori had activated her magic and couldn't move away from there. Reluctantly, he activated "Vajra" and waited for the flame bullets.
However, Hajime's worry proved to be groundless because Kaori's barrier completely blocked the flame bullets. With dubious expression, Hajime thought whether he just misfired while tilting his head, and he once again fired at the incoming flame bullets. Even this time, Hajime's Magic Eye indeed saw the cores being hit, but the bullet just passed through the flame bullets and flew towards the day after tomorrow..