Drawing from Appadurai's notion of mediascape, in which global cultural flows simultaneously construct local/global perspectives, I explored how youth and young adults across the globe make sense of digitally shared space, with a specific focus on the Webtoon reader discussion forum. Findings illustrated that the participants constructed the notion of care as standing up for others, raised awareness of social justice, and mobilized transcultural values to construct a cross-cultural community with multimodal engagements. By understanding the reader discussion forum as a mutually constitutive negotiated space, the voluntary decision of these young individuals to engage in Korean Webtoon digital space underscores how they construct literacy practices across the globe while transcending demarcated categories of race, gender, language, culture, and other essentialized identity markers.