Hana being a ronin is purely coincidental.
Hana being a ronin was the starting point of the series and the main problem of Hana. I thought i was joking when i telling Eiko was the MC but seem people have forgot who the real MC is. That's why i call that ship forced, it take room and make you forget about how Hana is suposs to be the MC and her ronin problem, who at this point it's just here because the chapter it's reveal to the cast will be the lastest chapters. Problem is, the ronin situation is clearly a non problem and is maintain because of Hana being weak minded and think that everyone will despite her, when it's obivous that they clearly don't care at all. I mean for sake, It's been more than a year they are together.
Did Hana still think seriously they will hate her because she is a ronin ? The only reason they can hate her is because she keep it a secret for so long. Now i'm just betting she will say it near the end, when they will graduate from their 3 years and everyone will brush it over.
Honestly, the author should drop the bomb so we can move on. Not like the story care about the ronin part anyway, we have only reminder only now and then about it for readers to not forget.