This smooch has no abilities to it. Its just something cute I found. =w= b Right so there is this part in the credits where Yumi, a good shinobi who uses ice powers, puts her hands on the " viewer's" cheeks and gives them a nice kiss complete with a kiss mark before they faint with happiness ( or I'd like to think so. xD I mean someone as cute and lovely as Yumi, who wouldn't? xD ).
https://www.youtube.com/watch?v=Gkrt0UOigbc the smooch is on 16:29
Though for those who just want the smooch itself there is even a GIF of it. :3 And cuz I am nice I'll link that too. Here you go~ http://gelbooru.com/index.php?page=post&s=view&id=2563862
Hope you guys like it. xD