>>185502499>Yotsuba is very unlikely to be the second Rena due to her having to quickly change and skip her track practice.
The meeting could have been prior to the track practice. This would have given Yotsuba plenty of time to change out of her Rena outfit and into her track outfit as she was already supposed to be in the area. It took Fuutarou quite a bit to get out of the water and to collect himself before he ran into Yotsuba.>Though the hat could hide the ribbon.
The ribbon is not connected to her body. She can remove it when she wants.>Still her track Captain would probably have mentioned her vanishing from practice.
She met up before the track meet so the Captain would have nothing to bitch about.>Yotsuba also isn't great at lying. Any pressure and she would cave revealing herself.
Yotsuba isn't great at lying, but she's not really lying about anything. This is not her pretending to be another Quint. This is her only vaguely not pretending to be Yotsuba. She also does a poor job at reacting to certain things Fuutarou says like tutoring the Quints and his long winded speech about the Quints.
Fuutarou wasn't trying to break Rena into admitting to being anyone. Yotsuba could easily handle something like that.