No one understands the art of self-promotion quite like Emmanuel Perrotin and Takashi Murakami. The dealer-artist duo invited a Manga-fied gaggle of “cosplayers”—people dressed as their favourite characters—from Japan to pose with guests on Tuesday night at an Instagram-ready party on the Rhine. The artists Daniel Arsham, Wim Delvoye and Gregor Hildebrandt were among those who boarded “Das Schiff” to hear the announcement of Murakami’s forthcoming show at Tokyo’s Mori Art Museum (31 October-6 March 2016) and his solo stand at Galerie Perrotin. The man of the hour even snapped selfies with a few lucky guests—including this diarist.