"Something Huge" (大いなる何か, Ōinaru Nanika, Tonari: 176) is the 132nd chapter of the One-Punch Man manga series.
Summary[]
Tatsumaki attempts to sever the fusion of Psykos and Orochi from their tendrils, but Psykos fires a powerful blast at Tatsumaki that slices the edge of the planet. Fortunately, Tatsumaki blocks the blast, but is not unscathed. Exalted with her newfound power, Psykos shares how she obtained it.
She reveals that when she and Orochi were fusing, they were visited by an otherworldly being that enlightened them about their destiny and bestowed them with power. Tatsumaki scoffs at the revelations which angers Psykos who continues her onslaught of attacks with another round of energy beams.