Expedition in Another World?

A brilliant student, suffocated by the monotony of her daily life, discovers a new passion in a video game. She devotes her after-school hours to crafting intricate strategies, but when she encounters a mysterious tree, her world is shattered. As she's dragged into a vortex of chaos, she must confront the darkness within herself and ask: is this new life the one she's been searching for, or will she find a way to escape the abyss and return to the familiar comforts of her old life?