Responses
I think shuugo is supposed to be tugging gensuke's shirt by force here since the earlier conversation on previous page suggested he was demanding some answers out of gensuke. It's just that mangaka didn't show that part and shuugo relaxed his pull when gensuke said 'He wants to practice more with shuugo'.
But yeah...they totally looked like flirting to me too. (づ￣ ³￣)づ
Why does it seem like they're already acting like a couple here? LOL http://www.mangago.zone/read-manga/hanakoi_tsurane/sa/sa-v1c005/14/