possibilities: 1) pick-up artist targeting foreign otaku girls in love with the idea of "japanese ikemen" 2) tout for bar or restaurant targeting tourists 3) religious cult member promoting their church
Actually, that's a misconception! When Bijou said that she was older than Nerissa she was talking about her lore(Character)! We don't know for sure if Bijou is actually older than Nerissa, but it's more than likely that Nerissa is the older one in real life.