Harima and Eri are in trouble. Neither of them can remember what happened the night before. While Harima tries to evade Eri and her homocidal butler, Tenma is forced to deal with the idea that Karasuma may have found someone else...

When Sonic wakes up next to Amy with no memory of how he got there, he's living on borrowed time as he races to find out just what happened before Amy makes his drunken promise of marriage come true.

Six years after the EX World Grand Prix a new race is announced. How will Wave react when she learns Tails is no longer an immature kid, and what does Metal Sonic have planned for Sonic?

A month after defeating Eggman and Eggman Nega, Sonic and Blaze are looking for some way to find each other. But when they do, it may wind up causing more trouble for them than they ever bargained for...

When two friends with similar problems find solace in each other's presence, something unexpected just might happen... Some mature themes near the end.