Cold Behavior

Well she's a solid eight baka on the tsundere scale.

sumiya is a god.

12 page story. 65 page energy. Sumiya is a monster.

Yooooo Kuudere + Tsundere? Sign me the hell up!

that was a marvelous use of just 12 page.
Nice short short introduction
Good intense sex
sweet final page.

Sumiya sensei never disappoints!!! Hopefully we get more in a sequel cuz 12 pages is too short for me!

oh no, she's too cute. and that last panel, I love it

Turns out she's just a bit of a Tsundere, how adorable.
Also her face as she buried it in her pillow on page 10...I just really like it, for some reason.
She looks so cute in that frame. Same for the one on the last page.
I think his interpretation is perfectly valid, too. She wasn't telling him to drop dead because of the fact that he was being flirtatious, she was just jealous that it wasn't her he was flirting with?

More...

"DAYUM!" ... turns out her Tsundere level is OVER NINE THOUSAND, plus (as Mr. James put it years ago): "She's A Very Kinky Girl ..."

Hoping these 12 pages are a prelude to a more lengthy work.

"APPROVED!"