Something's Wrong With Us manga volume 11 features story and art by Natsumi Ando.

After a brush with death, the Old Master recognizes that Nao is Sakura and suspects she may be his granddaughter, leaving the question of Kogetsuan’s inheritor up in the air. Thus, the Old Master proposes that Nao and Tsubaki each make a sweet and he will select a successor based on which creation is superior. Determined to free her former lover from torturous duty, redeem her mother, and claim her birthright, Nao throws herself into her work, aiming to craft the perfect wagashi. However, her opponent Tsubaki is an equally skilled confectioner. Who will be left standing when judgment is passed?