Flying Whale's Wonderful Life – I who has fused with an Invincible Weapon from the Age of Gods

Adventurer Kaito, in a stroke of misfortune, fell to his death due to the accident in the dungeon causing the crust to split and diverge. However to his luck, the place where he fell was a resting location of a Titanic Ship from the age of gods. Kaito who was left with only a soul, fused with the titanic ship in a form of a whale, gained an immense power strong enough to destroy even a country in instant.