Well, that escalated quickly.

BrotherJohn said:
Tama-chan...Rindou sensei will be proud if she saw this.

Or "Extremely pleased to be a part of this."

She has such amazing technique

Nishimiyashi Sachi

Is the first time her last name is mentioned?

solisel said:
Is the first time her last name is mentioned?

Possibly - The tag was created without a last name because it was unknown.

She said her full name during the entrance ceremony. (Official reading hasn't been given)

Heh, so now Ran-tan gets the attention as well? :3

Type-kun said:
Heh, so now Ran-tan gets the attention as well? :3

A true breast lover etc.