Even if you tried your best, the bitter truth is that sometimes, your best just isn't enough. A painful lesson about taking things for granted and sheepishly wallowing in cowardice, for both of them. On the bright side, they're still young. This would've been far more painful if it happened to them as adults. Finally, I guess the love triangle's over with Shiori getting rejected.
Honestly that was unnecessary fanservice from Akari, but I guess sales must be starting to dip...
pg. 4 "Shiro"...? Do you mean Shiori?