Offtama | Cosset Ikebukuro is a Doujin Fair taking place on 2026.08.11 at Cosset Ikebukuro. Organized by Hacostadium. COSMA covers venue access, the attendee list, official info, nearby hotels, coin lockers, and cosplay studios — everything you need to prep.
This event has ended.
View the latest 12/18 Mirror-Guided Sorcerer Only Offline Meetup info
Ended
Tokyo
Overview
An offline gathering event at Cosset Ikebukuro, where participants can enjoy photoshoots and interactions with fellow fans.
Buy cosplay costumes, wigs, and props directly from cosplayers
Browse items on COSMA※ Information is auto-fetched from official sources. Please verify the latest details on the official website.
Hand-picked carry-on bags and suitcases popular with cosplayers — from day trips to long expeditions.
LEGEND WALKER × 5 Cosplayers
A suitcase born from cosplayers' 'I wish I had this'
LAYER
Designed for cosplay travel
A carry case series shaped by active cosplayers, made to keep gear organized while the case stands upright.
Read the development story Part 1
4.50
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