do the raws even use any gendered pronouns for Od?
Nothing absolute. But his language is on the rough side, he uses Ore (For I) and Teme (for you).
I guess the readers are confused due to page 8, I guess that's my bad. OD said 好き(Suki) there and while that can be interpreted as "Love", it can also interpreted as "Like". I chose "fallen for the guy" because that's the thing the one which fits Sugar's reaction more.
To be fair, his speech IS a bit weird (and Suggestive). In chapter 25 page 2, the first draft (and literal translation) for the first 2 bubbles are "You can do whatever you want", "I will do anything". But gets changed due to context and SilverTongue(PR)'s comment.
Plus, he chose to wear Gakuran (Male school uniform).