Akuma no Riddle - Sekai wa Koi ni Michite Iru (Doujinshi)

Tokaku x Haru
Haru treats Tokaku's wound, which she incurred by protecting Haru. Haru feels certain that Tokaku will eventually return the favor.
In the middle of the Doujinshi you find also two short storys about other pairings.

Link:
The Doujinshi & Manga Lexicon