Spooper: he will appear after lowering the camera if you dont put back up the camera he will think you want to be friends and stay in the office and will stand infront of all the doors. The only way to close the doors/vent again is to use the axe on him, but hit him to many times then the cloth will disappear letting the air in the office be toxic slowly taking away your health leading to your death.

The story: https://gamejolt.com/p/the-story-otto-the-otter-got-tired-of-bieng-a-joke-character-and-m-ut7ndxwa

The reason: https://gamejolt.com/p/if-i-was-really-good-at-arting-and-tech-i-would-make-a-fnaf-fan-gam-gxrzxhsm