First, I absolutely didn't want to watch this because of it's cover. The guys look really gay like this and I supposed that it would be boring. One Day I thought I should give it a try. It was great and I wasn't disappointed at all.

In the first few minutes I haven't expected much and I thought that Wataru is something like a producer. But after I saw that he is a more interesting character than I thought, I fast changed my mind.
Also Kiyama (my fav.) who doesn't seem to talk to the others . He looks like he has some secret.
Even Kaneko had an interesting story and Mizusawa who was just random in my eyeas had something I haven't expected at all.
There is also Satoshi, a nice guy who cheers everyone up, the amusing teacher Kashiwagi, and all the other great characters.

I just like the theme song: the music itself is great and the lyrics really match the story. The background music (Tumbling OST) is very good, it has sad and also funny melodies.

I never can see if the acting is good or bad but I suppose that it's also good.

Rewatch value: 10
I'm not the type who rewatches series but there are scenes I watch over and over, just like some episodes (the 1st and the 4th for example).

All in all it's a really good Drama and I highly recommend watching it. If you like romance you might be disappointed, BUT you can see the characters evolve, which is also very interesting.

I don't like giving a full score in all categories but I think I don't have a choice because in my opinion I admits it.