Left panel: main-sequence evolution of 1.5 M_⊙ models in the HR diagram, computed with n_cv = 0 and P_rot, ini = 1 d. The result of magnetic models with an initial magnetic field strength of B_p, ini = 10 G and 10 kG are shown by the red solid and blue dashed lines, while the result of the nonmagnetic model is shown by the green dash-dotted line. Epochs for which the central hydrogen become X_c = 0.1 (and 0.7 for the B_p, ini = 10 G model) are indicated by dots. Right panels: profiles of internal angular velocity (top left), radial and toroidal magnetic field strength (top right), hydrogen mass fraction (bottom left), and the ratio between the magnetic pressure and the pressure (bottom right) at X_c = 0.1 as a function of Lagrangian mass coordinate. Again, profiles of the B_p, ini = 10 G and 10 kG models are shown by the red solid and the blue dashed lines, while that of the nonmagnetic model are by the green dash-dotted lines. Top right panel: radial and toroidal field strength are shown by the thick and thin lines, respectively, and the radial component for the B_p, ini = 10 kG model is multiplied with a factor of 10⁻³. The surface values are highlighted by dots in the right-top and right-bottom panels.