(Preliminary summary: The author's attack is vicious, but a bit cowardly, and has many bad habits, but in the author's heart, he is really cute)
There is a kind of passer-by, although no one cares about it, but it is indispensable. Occasionally, he will be jealous of the protagonist and do some small damage...
Although the protagonists don't care, this kind of passerby is still indispensable. Although it cannot improve the progress of the plot, it can increase the number of people in the world by one, which is indispensable.
Ridiculous reason
The time has come and I have appeared, hahaha, the task is difficult.
Work is important, let's stop here
Of course, the passerby is using his own body. Appreciating his youth is probably the only comfort.
Intention: Dedication