Anyone listened to Hagino-sensei's Twitch stream today? She talked about many things. She said that if nothing happens, the serialization will concluded in March, so 4 more chapters left. She drew what she wanted, and never thought to prolong the story just to meet certain volume numbers, stating that if one volume is about 200 pages, Hanigare probably would end in volume 7. Hagino-sensei knows that some fans are hoping for anime adaptation, but there's no plan for it (since the manga will end soon), and if there's an offer, she'd refuse, citing that she didn't want anyone to intervene with her story. She also said that this year was tough for her, since she didn't meet anyone except for supermarket's employee and doctors during the pandemic, and her cat's passing.
She talked a lot, but unfortunately, according to her tweet, she was unable to save the stream even though she intended to.