When Daisey runs afoul of the leader of a group of delinquents who threatens to trash Kaimei High unless she becomes his woman, Tsubaki takes it upon himself to avenge her honor and set things to rights!
I would use the barest minimum 
force necessary to satisfy me...
¡Usaría el mínimo de fuerza que me satisfaga...
Eu usaria o mínimo de esforço 
possível para me satisfazer...