@kuma because this is a romance manga not a gangbang hentai, the tallies are 17 so usually not going to be from one partner.
The better question is why are so many people obsessed with demanding to see sex in romance manga instead of going over to the hentai section for that? That was a general question not specifically targeted at you.
@kuma yes they do, not always right from the start but they do. But these 2 aren’t in a relationship any neither are many of the other manga characters yet there are still calls for them to have sex already.
Ignoring the no-doubt cancerous comments before this one, how does the translator know that the 17 is just part of the cosplay? I mean, having numbers in that location is part of the cosplay, but not the 17 specifically. There's a solid chance that she's had sex 17 times.
@Daktyl Probably an assumption that it is relevant to the character she cosplaying as. When you go super detail like that it would probably be more likely to reference characters or events in the game rather than yourself.
@Daktyl because she literally says on page 18 that the numbers are there because they're part of the cosplay.
And no, there is not "a solid chance." There is no more chance now than there was in previous chapters before this event. Nothing in this chapter indicates any more promiscuity on her part than anything else we've seen up until now.