Seicomart is indeed a convinience store chain, trading in Hokkaido (and reportedly also in Tohaku) and are imho way better than Lawsons, son son etc.
Go!Go!7188 are a [once underground, until they appeared on nhk, meh] 3 piece with an eclectic back catalogue, a penchant for the occasional cover and who usually make great pop vids [check out JetNinjin, and the remix track JetNinjin vs Hentai pants]
cheers for all the posts so far
