Takase is being stalked by his high school bully Yoshino who fell in love with Takase while bullying him
Shoukichi is a quick to violence hair stylist who is having trouble keeping customers due to his overly serious and unfriendly nature. On the other hand, Fukusuke is the new hire that formerly worked at a prestigious salon and prioritizes socializing over skill. The two can't get along and Fukusuke intentionally makes Shoukichi mad for his own amusement. The two become closer after they start staying late, at the orders of manager Mikado, to do skill checks.
Michiru is Keiichi's neighbor, childhood friend, and his obsessive stalker. Because of Michiru, who gets in the way of anyone that shows interest, Keiichi has never been able to get a girlfriend. With great effort, Keiichi, scared of his intense love, tries to reform Michiru.
Yosuke's childhood friend and neighbor Natsume always seems to know everything about him. When Yosuke thinks a girl is going to confess to him, she asks to be introduced to Natsume instead. When he sees Natsume that night, Yosuke takes his frustration out on him, but feeling regret full goes to his room to apologize. In Natsume's room, Yosuke finds candid photos, his missing clothes, and even one of the unused condoms he bought. Natsume knows everything about Yosuke because he's stalking him.
Novelist Meiji and his pastry-chef boyfriend Haru have been going out for 8 years. Meiji is a worrier and extremely possessive of Haru, terrified he'll be taken by someone else. When a chef at Haru's store is hospitalized his son, Harumi, is sent to take his place and, like Meiji feared, he's interested in Haru.
After seeing his favorite idol, Love-chan, on the train, Taichi follows her home and begins stalking her. However, he gets caught by her manager, Nakata, but instead of taking Taichi to the police station, Nakata takes him to a love hotel and takes Taichi's virginity. Afterwards, Taichi's interest switches to manager Nakata.
Naru's childhood friend and roommate Kei had always listened to his every command. So, when Kei starts prioritizing his new boyfriend Mizuse, Naru begins to fall apart.
Due to his over-serious and strict nature, lawyer Yuuya has a hard time maintaining relationship and people tend to be scared of him. However, his charming and popular kouhai Kanade has been attached to him like a dog since their university days. When Kanade finds out Yuuya's boss wants Yuuya to marry his daughter, Kanade, afraid of Yuuya being taken, kidnaps and confines him to his father's secluded villa.
Gloomy and creepy warehouse worker Makoto has been stalking his friendly and naive coworker Arata, who also lives a floor below him. While Arata suspects he might have a male stalker, he discovers it's Makoto when he goes to Makoto's apartment to check on him and finds a collection of secretly taken photos. However, despite his initial shock and fear, Arata treats Makoto the same as before, which only makes Makoto worse.
Leaving for university, Rikuo opens his door to find a man claiming to be the stray cat he helped two weeks ago. The man says he wants to repay Rikuo and asks to stay with him. Rikuo initially rejects him, but, when he feels bad for the man after he returns to find him still in front of his door, Rikuo allows the man to live with him and begins calling him Tama. However, Tama isn't a cat, but the president of a company who fell in love with Rikuo after seeing him care for the real Tama.
Yasaotoko to Sadistic