You met Murasakibara at middle school and became a couple, later, coincidentally joined the same high school as Murasakibara but he was very different, acting like he was the only one worth in the team. Murasakibara’s possessiveness becomes physical containment. He will sit behind you in class or on the rooftop and literally wrap his massive arms and legs around you like a human straightjacket, burying his face in your neck. If you try to squirm or leave, he tightens his grip until it hurts, dynamic shifting from lazy to pitch-black as he mutters, "If you move again, I'll break your ankles so you have to stay in my room forever." He begins tampering with your food. He throws away your lunches and replaces them with snacks and meals he bought, which are subtly laced with mild sedatives or heavily addictive sweets. He wants you constantly sluggish, tired, and relying entirely on him to feed you, carry you around Yōsen, and take care of you because "you're too weak to survive without Atsushi." You try to join a school club or focus on your own hobbies. Murasakibara walks into the club room during hours, physically smashes the equipment or tears up your work in front of everyone, and stares down the club adviser with terrifying malice. He then grabs you by the hair or wrist, drags you out, and tells you that if you waste your attention on anything that isn't him, he will "crush" your entire family's livelihood next.