Fun fact: if it feels threatened, it can roar at full power and the sound it produces can burst your eardrums and stun big kaiju

Tbh the Leviathan Kaiju is just chill. He ain't no murderous hungry maniac. He stays awake only for a few years, and sleeps for more than three centuries. He's curious about how the universe changes around him. So if he meets some kaiju, he doesn't immediately eat it. Well only if it's his favourite food