I know that she's called the losing childhood friend, but I think she has a chance here. I mean, the tsundere has had practically no development yet, she thinks protag-kun is a creep, and he's already groped her boobs. I think his weewee may go to the childhood friend. All thiis stuff applies to basically any harem anime/manga/light novel with a childhood friend and tsundere though, so I'm probably wrong.