Mars square Pluto (orb 4.9°) creates concrete friction between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Here, Mars in Scorpio in House 4 brings action, courage, competition, and effort into House 4 (roots, privacy, and inner foundation), with Scorpio style (intensity, desire, crisis, secrecy, and invisible power); Pluto in Leo in House 12 brings crisis, power, survival, and regeneration into House 12 (retreat, contemplation, long time, and possible confinement), with Leo style (presence, pride, creation, and the wish to be seen).
Concrete friction: this aspect creates friction between Mars (action, courage, competition, and effort) and Pluto's crisis instinct: pressure can become domination, fear, or destructive escalation unless it receives a clear outlet. Visible angle: Mars near the IC (orb 5.6°) and Pluto near the Rising sign (orb 0.9°) touch angles; this aspect is easier to notice through private base, family roots, and intimate psychological climate; also through first impression, body language, reflexes, and entry style. House 4 (roots, privacy, and inner foundation) is in friction with House 12 (retreat, contemplation, long time, and possible confinement); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.