I will not forget its coming (Manga)

Summary
After the daily chore, naive T cell taking a long nap. He had an uneasy sleep as he is suffering sleep paralysis. When he opened his eyes, he saw a black-long haired monster crawling at his apartment ceiling. Panicked, he ran away from his apartment to ask 2145 for an advice. 2145 told naive T cell to meet Memory Cell.

After consulting his problem with Memory Cell, naive T cell is taking Memory Cell to have a look at his apartment. Memory Cell told him that he do not know anything about this phenomenon. Memory Cell leaves him alone after taking a lunch.

When naive T cell is taking a bath, he met the black monster again. Luckily, 2145 and his teammates arrived just in time to kill the monster.

The monster turns out to be a Escherichia Coli, that came into the bloodstream because of a hemorrhoid.