@ole1230 The guys in this series (Okada included) all started out as trash. Remember how Okada was always trying to stop them from peeping even as he himself stared lasciviously at Ooki's knockers? But as the manga progresses, you realize Okada is capable of gallantry and the pervy guys are also good bros.
As you further become aware of just how deranged the girls around Okada are, you begin to feel sorry for him. And while Ooki, who initially felt simply like a stage prop, begins to show her true colors (by, ironically, becoming more and more inscrutable with each passing chapter), you come to the realization that the only character left without any sort of development or redeeming qualities since the manga's inception is none other than Katagiri- she has been, and continues to remain trash.
Ofc, twin hair-bun girl also hasn't deviated from her introductory role of crazy yandere stalker, but in her defense, she is new and has had far less screen time than Katagiri.
P.S. The current rating hardly does justice to this manga; it is hugely underrated. 😠