TOI-431, aka HIP 26013, is a a K-type main sequence star located about 106.17 lightyears from the solar system. three planets: an ultra hot super-Earth (b= 1.28 Re, 3.07 Me), an non-transiting super-Earth (c= 2.83 Me), and warm Neptune-like planet (d= 3.29 Re, 9.9 Me). TOI-431 has a unique structure with the middle being non-transiting. Additionally, TOI-431 b could be the remnant core of dead mini-Neptune, though it also could just be a really hot super-Earth.
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