At her school, Mei Sengoku leads the kendo club with strength and fortitude, earning a reputation for her resilience. Shirou Fuji, a close friend who defies gender norms, confesses his love to her. Mei, fixated on her quest for strength, starts to reevaluate her priorities, pondering the true essence of importance amidst these complex relationships. Additional stories in this series include 'Yoroshiku Brother?' in Volume 2, 'Fuyuzora ni Hibiku' in Volume 5, 'Android Box' in Volume 9, and 'Kaiki Youko no Kaiki na Ani-tachi'.