Ane no Hikitateyaku ni Tesshite Kimashita ga, Kyou de Yamemasu  

姉の引き立て役に徹してきましたが、今日でやめます

Based on her childhood vow, Charlotte dedicated herself to assisting her sibling. Despite appearing foolish at times, she persevered until she entered school. However, when she arrived, her sister humiliated her in front of others, causing Charlotte to become isolated immediately. If the next three years are wasted as they are now, Charlotte, the daughter of a weak aristocrat, will have no bright future. If she cannot secure a fiancé by graduation time, she will be forced to marry an elderly man who is as old as her father. Considering her relationship with her sister and her own future, Charlotte makes a decision. "I want to marry someone kind and lead a peaceful life! So I will stop being my sister's rival today!" Charlotte, who put an end to being her sister's rival, demonstrated her true potential and impressed even the teachers. Without hesitation or restraint, she pursued a happy future with determination.

Ane no Hikitateyaku ni Tesshite Kimashita ga, Kyou de Yamemasu began as a web novel on Shousetsuka ni Narou on July 8, 2021. Overlap has released a revised and illustrated version of the series since May 25, 2022 under its Overlap Novels f label.