Quote Originally Posted by shinta|hikari View Post
Happy ending ended after his mom used 15 years of her life for her dumb son, who got tricked by the most obvious suspect from the start of the show.
So obviously the happy ending will be:

Satoru reveals his powers to old Yashiro. Old Yashiro freaks out, tries to kill Satoru. Satoru jumps back again to before the accident. Has it play out as is, EXCEPT he informed Kenya/Yuuki/his mom/the police about it. So when Yashiro has Satoru crash into the water, suddenly people pop up surrounding Yashiro. Satoru is saved, Yashiro got caught in the act.

Final scene of the anime: Young Satoru to young Hiromi: "Sorry, can't let you do that." The End.