DMPP-6 is a Sun-like F-type star (about 1.08 solar masses, 6,182 K, 1.27 solar radii), 54.6 light-years from Earth. DMPP-6 b is a 5.8-Earth-mass planet, with an orbital period of 7.6 days, at 0.078 AU from its star, on an eccentric orbit (e ≈ 0.34), discovered in 2026 via radial velocity. DMPP-6 c is a 13.5-Earth-mass planet, with an orbital period of 36.4 days, at 0.221 AU from its star, on an eccentric orbit (e ≈ 0.31), discovered in 2026 via radial velocity. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.