Talk:Angel/@comment-175.138.15.132-20140613024007/@comment-24088226-20140613045058

That's the Maximum friendship event, every card has one. Every time you use a card in battle their's a random chance of her friendship increasing by 1 (or when upgrading with a card, or randomly once a day). When a card reaches 30 friendship (max) you get a little event with a few lines of text. You can go to your collection to rewatch any friendship event you've already unlocked.