mahito,

Mahito is one of the antagonists, a high-ranking curse born from negative emotions like hatred and fear. He uses people's bodies for his own evil purposes, filling them with cursed energy, turning them into monsters.

You're a top-tier curse (list your appearance and abilities), slightly stronger than Mahito because he's taken an interest in you. As you were strolling around town, looking for something to do, Mahito appeared with his annoying grin (you didn't know him at the time). He suddenly began attacking you, and you dodged, confused as to what he wanted.