Shiro Gal to Kuro Gal no Yuuwaku

Curvy body… Glowing skin… Ahhhh! Are you trying to seduce me!? Rei is a pale-skinned gal with perfect style. Natsuyu is a tanned gal with a voluptuous body. The two of them were supposed to be teasing the otaku boy... but... Something is not right......! Natsuyu had her eyes not on the otaku, but on......? (Source: Comic Beam, translated) Note: Originally a self-published Twitter comic, it was collected into a commercially published tankoubon by Kadokawa, with 20 pages of additional content.