Nijuuichi Nichigo ni Share House Shiteiru Senpai to Fuufu ni Natte Shimau Monogatari - Ch. 4

[MangaDex]

 

[Richman]

They got to stay together forever, unable to get married. Legend says the girl is still tying her hair.

 

[Askorti]

I wasn't convinced until now, but then you dropped a ponytail on me and now I'm on board xD

 

[Thesadchief]

sad that it got cancelled...

 

[Coldlight]

Given that this has already been canceled, people can just pretend they stopped cohabitation after 4 days and didn't end up getting married. Maybe the the kouhai protag fled believing she was a yandere, ruining her 21-day plan.

I guess it just didn't work out...