Raifu once said Ore (オレ,Ore?) and Honoka said Jan (じゃん,Jan?) at the end of sentence. These wording makes Aohoshi Suzuran angry.
Typically Japanese women use mainly “watashi” (私,“watashi”?), but for men there are other options such as boku (僕,boku?), ore (俺,ore?) and more. Typically you will find that Japanese people typically select the first-person pronoun based on the context of the conversation and who they are talking to. Ore is a first-person pronoun with an extremely rough image, it is only used in a casual setting between people who are very close. Also It can be very rude to who is older than you.
Honoka used 「じゃん」 at the end of sentence. 「じゃん」 is an abbreviation of 「じゃない」, the negative conjugation for nouns and な-adjectives. Using じゃん at the end of the sentence can be considered as informal and slang.
Why does Honoka's power keep dropping?
Why isn't Kimi emitting an AIM Diffusion Field at all?
The tankobon version of the chapter shows how Tsurigane Saryou got introduced into the orphanage and how Raifu got into trouble with the boys. In the magazine version, the introduction of Tsurigane is removed and starts right where the boys bullying Raifu. Events play out the same just like in the magazine version afterwards.