If you're talking about hard, then that's Lunasa-san of course? She's flat. Flat!I've taken a good peek from her armpits and I don't see any bulges whatsoever. She's totally flat!I'm not saying flat is terrible. But, I won't get aroused with breasts that aren't bigger than mine!The ideal size are ones that are as big as that doctor's at Eientei.Well if they are Yukari-sama's size, then I think that's fine. But anything below that is only flat girls.