Maybe it shows that the kid is being cautious or trying to create a certain atmosphere. It might also be part of a bedtime routine to get ready for sleep.
The table lamp on Pinduoduo was usually used to illuminate the surrounding environment, not to read books. Because their brightness is usually not enough to provide enough light to read the written material.
If you want to read in the dark, it's best to use a bright table lamp or use an eye mask and sunglasses to protect your eyes. In addition, make sure that the pages and paper quality of the book are clear enough to be read clearly.
Perhaps she is forced to turn off her emotions in the fanfiction. For example, if there is some sort of dark magic or a powerful entity that compels her to do so. This entity might see her emotions as a weakness or a threat and manipulates her into shutting them down.
The Invincible comics don't have nudity. They adhere to a standard of presenting exciting plots and engaging characters without including such elements.
In American fiction, the occurrence of nudity is not a blanket feature. It can be found in certain works, especially those exploring adult themes or seeking to make a bold statement, but many mainstream and popular fiction titles avoid it altogether.
There is typically no nudity in boys' comics. Comics for this demographic are usually regulated and designed to be family-friendly, without including anything inappropriate like that.