Riches and Bitches: I have a gate to an isekai and leveling-up system! - Chapter 278: Turning point (9?!?)

I don’t need companions. I don’t do party play. But… the game forces party play?

Hogwarts is a strange place. The demon king who failed plastic surgery was eliminated from the job search. The white-haired old man wearing two layers of wool socks is still too cold in summer. The potion professor who never washes his hair is afraid of going bald, and the key keeper loves to play dragons!

William wanted to spend seven ordinary years, until that night, the door handle of the college lounge was stolen…

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- Description from novelbuddy

mc gets transmigrated to Fallout New Vegas with the merchant system. let the questionable adventure begin.

In the mystical land of Teyvat, where elemental forces collide and secrets of ancient gods remain buried, an ordinary traveler awakens to an extraordinary destiny. Armed with unparalleled ambition and a mysterious system, they embark on a quest to become the Supreme Arbiter—the ultimate authority over all creation.The world of Teyvat is no stranger to conflict, but its hidden truths are more treacherous than any battle. Beneath the veneer of harmony lies a struggle for dominance among divine beings, and the enigmatic Heavenly Principles rule from the shadows. Yet, this traveler defies fate itself, determined to shatter the chains of divine control and reshape the world.Guided by a unique power to harness and manipulate the essence of Teyvat’s elements, the protagonist builds alliances with heroes from every nation—Mondstadt’s free-spirited knights, Liyue’s calculative sages, and Inazuma’s thunderous warriors. However, their journey is far from peaceful. Ancient enemies, forbidden truths, and the ever-present gaze of Celestia test their resolve at every turn.As they ascend in power, unraveling secrets that defy the understanding of gods and mortals alike, one question looms: What does it mean to be the ultimate authority?Will they bring salvation to Teyvat, or become its greatest threat? The skies tremble, the earth stirs, and destiny itself bows before the rise of the Supreme Arbiter.