* Whenever Hikaru [[{{Troll}} trolls]] someone. Such as asking Ema about her relationships with Natsume and Azusa while Natsume is driving and Azusa is also in the car, or when he walked in on Ukyo [[HandsOnApproach teaching]] Ema to chop meat and proceeds to point out that he is blushing. Also apparently he created a chart labeling the odds of each of the brothers winning Ema over.
* [[PrecociousCrush Wataru giving Ema a coupon for 100 smooches.]] One of the brothers notes that the youngest brother is the most forward about his feelings.

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