Mayu Koida works as a fashion stylist, but she lacks passion for it. Her focus is on keeping up with the latest trends and being in a trendy profession. When she's in a relationship, she neglects her work and her self-esteem is based on her looks and being loved.
In contrast, Yuka Shimizu has dedicated herself to being a professional mixed martial artist since high school. She's given up typical joys of young adulthood like socializing, marriage, and motherhood to pursue her goal. Her dream is to succeed in the featherweight division and prove her past sacrifices were worthwhile.
What happens when these vastly different women become roommates? Can they inspire each other to improve, or will their weaknesses bring them down?