OHH WHAT NOW I'M GETTING CURIOUSSS >:D it takes a LOT for Haruki to get angry but it's not like loud boisterous anger like his personality, it's cold and quiet but defintely noticable since it's different from him normal personality but that's in step 2 and beyond
in step 1 it's hot anger, he'll yell, berate, scoff all that fun stuff