You calling a child "b*tch"? Also, that's his sister and everyone in the orphanage treats each other as siblings, so you don't have to worry. There's another girl kid that's portrayed crushing on him/wanting to be noticed by her first ever friend in a few chapters, but it's all kid crushing on another kid and she's not annoying or clingy or have no personality other than that.
Bottomline is, there's no romance or harem (for now, like you said it can change, but I don't think so), no pseudo-inc**t between the orphanage kids, this is just a story about kids in an orphanage trying their best to be self-sufficient because the new local lord stopped supporting them. So I hope you stop calling every girl a bitch just because you think it makes you look cool

Altho the mc looks like a kid, ik there's a possibility that the b*tch on the cover was into him. So can someone spoil me, coz ain't gonna read this if it does have romance