A boxer who sabotages himself before every fight meets a nun trying to save him, and neither of them knows how to actually do it. The show finds the comedy in watching someone want to change more than anything, then immediately eat a hamburger two hours before the weigh-in. Rumiko Takahashi doesn't write romance, she writes the specific friction between two people who are genuinely trying, failing in real time, and somehow more lovable for it.
Kosaku Hatanaka has the raw talent to become a champion boxer. His technique is sharp, his punch devastating. There's just one problem: he can't stop eating. Every time he devours a burger right before stepping into the ring, his weight climbs and his stomach becomes a liability. One solid body blow and he's doubled over, losing matches he should have dominated. Desperate to fix his lack of discipline, Kosaku seeks help from Sister Angela, a young nun training at the local convent. She's earnest about her faith and genuinely wants to support his comeback. What she doesn't expect is how much his chaos will test her own commitment to the quiet life. What unfolds is equal parts sports comedy and unexpected romance as two people with competing passions try to keep each other on track. Kosaku needs to master his appetite if he ever wants his potential realized. Sister Angela needs to survive the distraction his presence creates. Their collision of worlds becomes both funny and oddly touching.