Idol Fan Support Economy & Oshi-Katsudou

Female otaku fashion evolution in Shibuya-Harajuku distinct from male-oriented Akihabara otaku fashion. 'Oshi-katsudou' (fan support activity) fashion integrating character merchandise and endorsed apparel into personal identity. Mass retailers now extensively stock otaku-oriented items. Fashion as integrated identity and economic activity simultaneously.

Economic activity of investing to support specific characters, VTubers, or idols. Investment in 'oshi' (favorite characters) has become normative, forming a market worth tens of billions annually. Integrated fan investment behavior including merchandise purchases, live attendance, and game spending. Recognized as a phenomenon expressing the essence of fan culture in the digital age.

A collective term for activities supporting one's 'oshi' (favorite idol, character, VTuber, etc.) through consumption. Encompassing merchandise purchases, concert attendance, Super Chat donations, and pilgrimages, the oshi-katsu market is valued at hundreds of billions of yen annually. As the core consumption behavior of Gen Z, it represents a new growth engine for Japan's economy.

An economic ecosystem centered on devoted consumption toward 'oshi' (favored idols/characters). Represents the vanguard of SNS-era otaku spending, integrating merchandise purchases, voting systems, and fan site subscriptions. Shows particular synergy with VTubers, Idolmaster, and Love Live franchises, where public display of oshi devotion has become a status symbol.

Retail format innovation pioneered by specialty mega-stores like Animate and Gamer's. Sophisticated merchandise curation, display strategy, and demographic segmentation efficiently capture otaku spending. Flagship locations, station-front placement, and online integration create comprehensive merchandise purchase experiences, establishing infrastructure for materializing fandom devotion.

Phenomenon of otaku culture and otaku aesthetic adoption by mainstream media, advertising, and fashion. Akihabara fashion and anime character aesthetics penetrate mainstream culture. Represents shift from marginal to central cultural status. Otaku values gain social visibility and legitimacy as oshi culture, merchandise enthusiasm, and character references become normalized everyday expression.

An economic and cultural system centered on Comic Market, Japan's largest doujinshi fair. Held twice yearly, attracting hundreds of thousands of participants and circulating millions of fan publications. A model autonomous marketplace formed by creators, buyers, circles, and distributors. The foundational source of otaku economy.