Thanks for the chapter, NGS.
[ ] Straight
[ ] Gay
[ ] Bi
[ ] Pan
[X] Slut
Unfortunately, but very predictably, this is almost certainly the original intent of the author. Plenty of authors believe that large breasts are inherently licentious--i.e., the female with them, as long as she doesn't bear certain other characteristics (like, for example, masculinely short hair), is possessed of a "lewd body" according to such creators; the implication is always that such a female is dissolute, and the large breasts are proof.
Many artists think the same, and coomers who consume the works of either don't give it a second thought--a ton of both groups (along with the authors) lust after
undeveloped bodies, anyway, and think ill of the diametric alternative. A lot of it also comes from a corruption of the natural masculine attraction to large breasts: weak males can't control that attraction at all, so they consider large breasts--per se--justification for their own unrestrained lust.
If you ever hear about attractive women resenting or otherwise hating their own large busts, this is a major reason why.
So it's now "debatable" whether MC-kun is easier to defeat than Arai or not--even after how much the latter was established as a major threat even to MC-kun's fighting instructor and her friends. You're really not supposed to think about this, huh?