In The First Grade - Vol. 1 Ch. 5 - When he changed into a swimsuit

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Sarasa has clearly fallen in love with Takatou, typical transference syndrome, not only there was a 10 years age gap before but now there's gender differences. Not sure how this will work out, unless Takatou accommodate to his situation...

Takatou should just tell Sensei there's a dangerous predator stalking in the bushes, but at least recordings were destroyed.