Henkyou Kishidan no Oryourigakari! ~Suterare Youjo Desu ga, Kahogo na Kazoku ni Hirowarete Oishii Gohan wo Tsukurimasu~

Border Knight Order's Cook!, Henkyou Kishidan No Oryourigakari!, Henkyou Kishidan no Oryourigakari!: Suterare Youjo Desu ga, Kahogo na Kazoku ni Hirowarete Oishii Gohan o Tsukurimasu, 辺境騎士団のお料理係！, 辺境騎士団のお料理係！～捨てられ幼女ですが、過保護な家族に拾われて美味しいごはんを作ります～

Synopsis Henkyou Kishidan no Oryourigakari! ~Suterare Youjo Desu ga, Kahogo na Kazoku ni Hirowarete Oishii Gohan wo Tsukurimasu~

After being abandoned by her biological father, El suddenly remembers her past life.
She is taken in by a frontier count’s family and comes to live alongside the frontier knight order.
There’s Lars, a master swordsman; Merlino, a healing mage; and Halon, who strives to catch up to and surpass his older brothers.
The three brothers are overjoyed to have a new little sister—and dote on her endlessly.
However… the food in the frontier region is terribly bad.
So begins the reincarnated little girl’s culinary reform!