Ah, what perfect timing for him to decide to slack off when she asked him to do extra laps.
Not to mention, nonchalantly suggesting she smell it 'directly'...
That ending though. Well hey, she may be a failure as a teacher, but I'd say she'd make a great girlfriend.
I definitely don't think she's a "failure as a teacher"..She's just a practitioner of the "Hands on" technique, when it comes to teaching. The pupil learns more with this style.. Very fond of this technique if I might add, Bravo Hashiba!