Story: 5
OK let's not pretend here. The tunnel is a euphemism for vijayjay.. And the thing that is deceiving about the title is that it makes you think there is only one vijayjay that only he can enter. But it's not the case. There are plenty tunnels that he can enter besides the actual tunnel.
Story is very cliched but has good comedic elements here and there.
Art: 7
Art is surprisingly good. Tongue movements during kissing are very life-like but kinda gross.
Sound: 6
Nothing to complain about. But with all the lines the voice actors had to run, I felt like they did their best.
OSTs are fine I suppose, I don't pay much attention to them, pretty forgettable.
Character: 6
There are interesting concepts. For instance, a healer that is afraid of healing too much. A quest receptionist who is in competition with others. They add flair a little to the story. Overall, it's just OK.
Main character is lame.
Enjoyment: 5
Not sure if I was always engaged throughout, so I think it's not good enough for enjoyment purposes.
Overall, it's just fair.. but if you are a busy person, don't watch it.