Sakae is a rich yandere for the listener of Yandere Heaven volume 2.
Background[]
Sakae attended Fuzoku College, which was the same college that the listener attended. During lunch one day, the listener complained to him about something he did. It's unknown what he did, but he never forgot her response since she was the only one who stood up to him. Sometime after college, he went on to take on the family business. Because of his weak health, he has to be hospitalized frequently. He has an older brother whom he is worried about becoming a burden to.
Yandere Traits[]
Despite his arrogant and self-righteous attitude, Sakae can quite considerate to the listener. When she tells him about having sleep issues, he provides her with medicine to help get sleep. During a conversation about her ex-boyfriend, he promises to be faithful to her and to stay by her side if he were her boyfriend. In return, he hopes that she will give him everything and love him just as he has done for her. Even though they met once at college, Sakae became quite intrigued by the listener. He apparently set up listening devices and used them to stalk her, finding out all he needed to know about her for the last six years. Once he starts noticing her working at the hospital, he does everything in his power to spend time with the listener, including assigning her as his "exclusive nurse". He displays a dominant behavior, which he expects her to submit to either under threat or by choice. As well as making her his personal nurse, he tells her to call him "Sakae-sama". He believes that the listener is secretly in love with him and has done things like go out with another man and be with Takaaki to make him jealous. He's annoyed by Takaaki constantly interrupting them and, at point, wishes that he had drugged Takaaki so that he could have more time to talk to the listener. During his ending, he makes the listener use the sleeping drug on Takaaki so that he won't get in his way anymore as he claims the listener for himself. He seems to contemplate selling the doctor's body on the black market, possibly to be rid of him forever. In addition to his arrogance being a defining trait, his manipulative behavior is also a defining trait. He uses his wealth to obtain what he wants, including breaking up the listener with her boyfriend. He also intends to use his wealth further to make it impossible for the listener to get away from him, even if he has to bribe the police into looking the other way. Another way he secures her fate with him is knocking her out with her waking up in a wedding dress and presumably in a different city where she can't run away from him as easily.