- Ichika = Unlikely. Her ankle was injured so she can't run. We see the kisser was running before and after the kiss.
- Nino = A Big Nope based what she said that she will kiss him, unfortunately her act is just a bait / red herring. Think about it.. even Negi won't give us something that easy.
- Miku = Nope too. She doesn't have the guts. (she even needs her sisters supports to confess). Even if she was, she'll be out of breath, remember she's well known with her low stamina.
- Yotsuba = The most likely. She can act selfish for once (remember that she kissed his cheek before). Basically she's given up on him so she act selfish for the last time. (well what do you call it.. some pent up emotion i think? she has been in love with him for long)
- Itsuki = She doesn't like him that way yet.
So why Yotsuba is the kisser? Because everyone won't see that coming. Screencap this
