TV-Series
Description
Nishikata is a middle school student frequently teased by his classmate Takagi, his easily flustered reactions and expressive face making him a constant target. Possessing a competitive but kind-hearted nature, he persistently devises plans to retaliate against Takagi's teasing, though these attempts nearly always fail. This determination drives him to self-imposed physical challenges, performing push-ups (10 per tease in the manga, 3 in the anime) as both punishment and motivation.

His background includes an indirect childhood connection with Takagi through an arcade game where they competed anonymously for high scores; Nishikata never realized his rival "TKG" was Takagi, foreshadowing their future dynamic. Academically average, he excels in sports, participating in arm wrestling and marathon running, eventually joining his school's track team. He harbors an interest in manga and anime, particularly the romance series "100% Unrequited Love," which he hides to project a more mature image.

Gradually developing romantic feelings for Takagi, Nishikata struggles to acknowledge them, often misinterpreting her teases as mockery. Instances like defending her dignity during pranks, comforting her in distress, or choosing walks with her over video games with friends reveal his underlying care and affection. Their bond deepens through shared experiences like building a secret fort or attending summer festivals. After years of mutual pining, he confesses during their third year of middle school, leading to marriage.

As an adult in spin-off media, Nishikata works as a PE teacher, maintaining a muscular physique from his ongoing push-up regimen. He retains his easily embarrassed nature, especially when teased by Takagi or their daughter Chi in domestic settings. His personality evolves into a responsible yet playful family man, doting on Chi while often teaming up with her in failed attempts to outwit Takagi. He exhibits overprotectiveness regarding Chi's social life, particularly topics involving boys or marriage, reflecting his deep paternal attachment.

Nishikata's relationships define his growth: his bond with Takagi shifts from adversarial to deeply affectionate, while his role as a father highlights his nurturing and devoted side. His interactions with classmates and friends, such as Mina or Nakai, further illustrate his friendly and morally considerate nature, though he consistently prioritizes time with Takagi.