I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too 8 (Fujimi Fantasia Bunko) [Light Novel]

[Machine Translation] Yuya Tenjo has become the savior of another world by overpowering the "God of Doom" that has plunged mankind into the danger of extinction. As Yuya rises to the top of all things at full speed, a great disaster overturns the common sense of this world! When Yuya returns to the real world, she is confronted by Meruru, an apostle who descended from outer space. As if in response to her wish to save her home planet, Yuya's battle rapidly escalates to the entire universe! In search of the energy Meruru needs, Yuya descends to the "core of a star" in another world. There, the voice of the "Lord of the Stars" echoes through the air. It's an aura that reminds me of the old days.... It reminds me of that wise man. And the ultimate power is given to Yuya!

人類を滅亡の危機に陥れた“滅びの神”を圧倒し、異世界の救世主となった天上優夜。全速力で森羅万象の頂点へと駆け上がっていく優夜に、この世の常識を覆す大災厄が襲い掛かる!現実世界に帰還した優夜の前に現れたのは、宇宙から降臨した使徒・メルル。故郷の星を救うという使命を抱く彼女の願いに呼応するように、優夜の戦いは全宇宙へと急拡大していく!?メルルが必要とするエネルギーを求め、異世界で『星の核』へと降り立った優夜。そこに“星の主”の声が響き渡る―。『懐かしいオーラですね...あの賢者のことを思い出します』語られる驚愕の真実。そして優夜に究極の力が授けられる!!