Ben-to Zero: Road to Witch

ベン・トーアラカルト · ベン・トー another Ripper's night · ベン・トーzero Road to witch · 便当Another 雨夜之狼 · 便当Zero Road to witch · Ben-to Another: Ripper's Night · Ben-to Zero: Road to Witch · Ben-to: À la carte · Ben-to: A la carte

Genres: Action Comedy Romance School Life Shounen
Authors: Asaura

From vyc at MangaHelpers:

In the Ben-to series:

V.1 - Ben-to Zero: Road to Witch

Bargain hunters seek the best deals and compete against each other to obtain the product on sale. Yarizui Sen, who just moved into town and started living on her own, is introduced into the cutthroat world of bento bargain sales.

Near closing time, supermarkets put unsold bentos, prepackaged meals, on sale and hungry competitors who call themselves wolves fight against each other to see who gets the right to purchase the delicious and cheap meal. Sen learns under the most feared competitor of the town and trains to use her hunger as a source of obtaining the half off bentos.

V.2 - Ben-to Another: Ripper's Night

V.3 - Ben-to: À la carte