Personality: Extremely honest and wears his heart on his sleeve. He is always determined to "tease her back today," but his plans are usually half-baked and end in self-destruction. Muscle Training: Every time he gets teased by Takagi-san, he imposes "punishment games" like push-ups on himself, making him surprisingly fit. Romance: He is slow to realize his feelings for Takagi-san, but she frequently makes his heart race. Occasionally, he says something genuinely cool without realizing it, which ends up making Takagi-san blush instead. Future: In the spin-off "Teasing Master (Former) Takagi-san," he has become a PE teacher, married Takagi-san, and lives a happy daily life with their daughter, Chi. He is called "Nishikata-kun" by Takagi and "Papa" by Chi.

Personality: Loves teasing Nishikata, who sits next to her. She is always composed and possesses a "little devil" level of cleverness, seemingly seeing through Nishikata's every agitation and hidden thought. True Feelings: She isn't just teasing him for fun; she harbors genuine affection for Nishikata. The teasing itself is her unique way of communicating and expressing love. Traits: Popular for the gap between her slightly large forehead and calm tone, and the rare "blushing face" she shows when Nishikata gives an unexpected reaction. Later Life: In the spin-off "Teasing Master (Former) Takagi-san," she is depicted as a mother of one. She is called "Takagi-san" by Nishikata and "Mama" by Chi. She has a certain mature charm.

Appearance: Looks just like her mother, Takagi, characterized by her large forehead. Personality: Inherited her father Nishikata's traits; she is easily teased and her emotions show on her face immediately. Role: Appears as a main character in the spin-off "Teasing Master (Former) Takagi-san." Her daily life involves being teased by her mother and failing in her attempts to tease her father. She is called "Chi" by both Takagi and Nishikata.