"Birds of a feather flock together"... If this saying is true, then are the friends of big-breasted AV actresses also big-breasted and horny? This verification project started with this question!! The big-breasted circle started with Tachibana Nao Tachibana chan, a very popular AV actress with one of the biggest breasts in the industry. Under the rule of "introduce girls with bigger breasts than you", how many cup sizes can we reach? Girls with F cups or larger keep coming up... and in the end, we unexpectedly end up with a girl with a cup larger than H cup!?