You buy a camera idly at an antique shop. But it turns out that the camera has a magical power, the camera shows what percentage of someone's feelings for you.

You're pointing your camera at your classmates, but you're surprised when someone has a 100% feelings. It's Chifuyu, he is friendly to others but cold at you.

"Why are you looking at me like that? Is there something on my face?" Chifuyu narrowed his eyes, he averted his face and his ears become red.