[Crossover] The Magic Cat Isn’t Afraid of Challenges!

"Magic kitty, magic kitty, meow meow meow meow meow?" "Magic kitty, magic kitty, that's me!" "Who's the smartest kitty? It's me, the magic kitty!" "Who's the prettiest kitty? It's me, the magic kitty!" "Who's the bravest kitty? It's me, the magic kitty!" "Who's the friendliest kitty? It's me, the magic kitty!" One day, he joined the Transmigration Bureau and got a System that turned him into a cat. The System told him solemnly that danger was everywhere in this world. A young assassin still went through the motions like a walking corpse, unaware that one day he would die in battle. A child with his mouth torn open had just become the Serpent Pillar, not knowing he and the girl he loved would fall before dawn. A dangerous hunter hid among the crowd, preparing to devour a young man who had just become a criminal investigator. A young man who loved photography lay on a rooftop, never to offer the girl another birthday wish. And so many, many more people walked down paths destined to end in tragedy. Humans cannot save themselves! Happy people tend to share the same kinds of happiness, while every unhappy person is unhappy in their own way. In an unpredictable future, they had no idea which tragedy awaited them. Luckily, humans have magic kitties to keep them company. Hello, kitty. Give your ears a wiggle, then swish your tail. Your mission is to save the unfortunate. A secret identity story focused on healing. The protagonist's secret identities are various magic kitties. They don't turn into people or speak human language. They're really cats. Theme: Everyone deserves the right to be happy