This is Chibi Maru, a Japanese cat with a demonic cry! His human companion LLR伊藤智博 recently posted this video of Chibi Maru vocalizing in a most unusual way. He seems to say, "Ololiloliloliloliloliiiloli," reports SoraNews24.
Is the cat angry? Defensive? Summoning the devil? Something ain't right with its ears folded down like that.