Spoilers ahead. I like the pacing for this. The main plot point being the MC's little sister is gonna destroy the world. Told by a time traveler. We dont know why or how, due to the fact that the MC and the sister dont seem to clash that often. If anything they care for each other. Eventually its told the MC dies within a year by a reaper. So we pick up on why that may happen.
So I have a problem and its about how shitty, rushed and retarded the last few chapters are. Chapters 74 - 78ish, not on mangadex but you get the deal. Our MC was juggling several jobs to make ends meet. Then he was given a scholarship and he just needed to pass the upcoming exams. The chapters leading up to this showed that our MC likely would've passed. Plus the fact that he was studying for the exam. That day the landlord was watching his sister. His sister has also been shown to not get in serious trouble. His landlord, an alcoholic started drinking because a side character brought them. There was a couple other side characters which all knew the sister was a demon lord. Including the reaper and the time traveler. The reaper was sent to the mortal plane to figure out why a bunch of humans are gonna be going to heaven soon. Ironically are all technically responsible for the death and destruction of earth. All the sister did was draw on the walls, the time traveler cleaned up, she chased her out of the house and no one stopped them, tried to kill her, broke a glass window and got in trouble with the police. All within the hour the MC was supposed to take the exam. The MC lost his scholarship, and had to pay for the window and was thinking about abandoning his sister. Which is not in character. She tried to destroy the world and it took BOTH THE REAPER AND THE TIME TRAVELER. Apologizing and begging to get him to go back on his word and take care of his sister, saving the world... Bro so much shit happened and this could've been done differently.
First off. Why didnt he blame the landlord. He was not responsible for his sister at the time. It was more out of character to willingly abandon his sister. But the plot point of him sorta abandoning her should've stayed, not verbally stated. Shouldve been like an drunken accident. Maybe he succumbed to alcohol poisoning or something. He should've also flamed both the time traveler and the reaper for this shit. Like that was their entire plot, to stop the sister.