Summer Time Render is an anime that looked all good and dandy on paper and was supposed to be right up my alley. A finished story told in mere 25 episodes, with the pretty standard now but still exciting key idea about time-rewinding, that simultaneously offered a fresh twist on who the opponents of the main characters are. The concept of the Shadows and shadow sickness was fresh enough to keep me invested during the first 10 or so episodes. Truth to be told though, the only two reasons I continued to watch the second half of the show were inertia and the lack of competition.
The first half of the anime is a pretty solid thriller. You have to guess whether this or that person is actually a Shadow and whether he or she already was one at some particular point before; Subaru Shinpei, armed with the knowledge from the previous loop, is trying to get a better outcome for everyone… fun stuff, really! Not groundbreaking but fun. The second part went full EoE though. It became much, much, much more action-oriented and kinda lost those thriller vibes, I don’t think that I had a feeling that I was about to see something unexpected during the last 10 or so episodes. The anime still would throw some facts and rules about the Shadows at you here and there, but I had already lost interest and really didn’t care whether these rules made any sense, so it was difficult to me to appreciate the brains and spunk the heroes demonstrated exploiting those rules in the face of adversity. Also, speaking of characters, surprisingly enough the cast turned out to be pretty bland. You’d think that 25 episodes should be enough to make you care for at least some of them but somehow all the people in Summer Timer Render ended up being nothing more than bunch of walking bullet point lists (“I’m a grumpy but actually nice old dude, whose wife is a Shadow”, “I’m a writer sharing the body with my long-dead twin brother”, “I’m your normal main character”), with no real personality, who didn’t give a single reason to sympathize with them.
Overall, I’d say that Summer Time Render is a disappointment. It’s not bad but it’s just sad that it had all the potential to become a good action-thriller, the one that you maybe won’t watch again any time soon but still will remember (something like Mirai Nikki comes to mind), but instead ended up being a drag.