[blitz1/2]

Originally Posted by SoFarGone

Spoiler for why Yuu can't speak:

she has special powers that whatever she says can come true.

the relationship chart has been posted before in the anime section but here it is again:

Spoiler for relationship chart:

Lol, I can imagine the exchange between Haruna and Ayumu right now.

Haruna: Well, you're annoying!

Ayumu: So what?! You're a pain in the ass!

xD