HIP 9618 is a Sun-like G-type star (about 0.94 solar masses, 5,649 K, 0.96 solar radii), 67.5 light-years from Earth. HIP 9618 b is a 8.3-Earth-mass planet, with an orbital period of 20.8 days, at 0.145 AU from its star, and an equilibrium temperature near 641 K, discovered in 2023 via transit. HIP 9618 c is a 7.0-Earth-mass planet, with an orbital period of 52.6 days, at 0.269 AU from its star, and an equilibrium temperature near 470 K, discovered in 2023 via transit. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.