Kazuya kept trying to get the Soul Stone by sacrificing who he loved most, only to find out with each failure that this wasn’t his most beloved fighter.
And when Kazuya finally narrowed down who he loved most to Kirby... Alas, Kirby can fly. RIP all those who died for nothing, just so Kazuya could figure out that the person most dear to him, was already unkillable anyway.
(image id: Kazuya from the Tekken series is standing on a rocky cliff, with volcanoes and mountains in the background. It appears to be noon. Kazuya has his right arm extended over the edge of the cliff, holding Kirby over the edge. Kazuya drops the pink puffball and lowers his arm. After this, Kirby is seen falling into a ravine of sorts.)