Sun opposite Pluto (orb 1.9°) puts the two planets face to face, with visible back-and-forth or tension. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Sun in Capricorn in House 4 brings identity, ego, father figure, visibility, and direction into House 4 (roots, privacy, and inner foundation), with Capricorn style (structure, ambition, responsibility, and long construction); Pluto in Cancer in House 10 brings crisis, power, survival, and regeneration into House 10 (vocation, status, responsibility, and public image), with Cancer style (memory, protection, belonging, and family sensitivity).
Concrete conflict: this aspect sets the Sun opposite Pluto: ego, personal direction, or father image can face power, crisis, control, or fear directly. Visible angle: Sun near the IC (orb 5.1°) touches an angle; this aspect is easier to notice through private base, family roots, and intimate psychological climate. The house conflict is between House 4 (roots, privacy, and inner foundation) and House 10 (vocation, status, responsibility, and public image); pressure in one field tends to reactivate the other.