Amaku Naru Made Matemasen summary:

The main character of the story is Asakura Mei a 24-year-old who works as an office worker. Mei, who had just received a proposal from her boyfriend, was worried at the same time when her brother asked her to take over the Japanese sweets shop at her parents' house and become president. What appeared in front of such a bud was a gentle young man who called himself Higashi... A romantic comedy by a friendly female president and a sadistic boy is developed.source: https://www.mangaupdates.com/series/ek0375o/amaku-naru-made-matemasen