Manga
Finished
Mar 10, 2021 to Oct 10, 2024
40 chapters, 5 volumes
Having failed his college entrance exam, Ao Toruno ends up living by himself and attending cram school. It is then that he encounters a middle-aged woman, still clad in her office suit, drunkenly passed out at the bottom of his apartment's stairway. Despite not knowing her identity, Ao offers his apartment as a place to rest. Everything seems normal for the most part—but at the flick of a switch, things become intimate for the two, and Ao finds himself stuck in-between focusing on his studies and trying to put up with the advances of a nameless "onee-san." [Written by MAL Rewrite]
Oneesan ga Shinryakuchuu!?, Oneesan Is Invading!?, おねーさんが侵略中!?
90
251
303
4451
18 (2.1%)
20 (2.3%)
39 (4.5%)
81 (9.4%)
136 (15.7%)
217 (25.1%)
187 (21.6%)
86 (9.9%)
31 (3.6%)
50 (5.8%)