Something's Wrong With Us Vol 2

From the Kodansha edition

A spine-chilling and steamy romance between a Japanese sweets maker and the man who framed her mother for murder -- Something's Wrong With Us is the dark, psychological, sexy shojo series readers have been waiting for! Under the Full Moon Even after her mother's passing, Nao continues to make wagashi, traditional Japanese sweets, to feel less alone. All who have a taste of her confections are floored by the heart she imbues into her work, but being a no-name new talent summons the jealous ire of established family businesses like Kogetsuan. Moreover, Nao has married into Kogetsuan through Tsubaki, the contested heir...to find out why he framed her mother for murder years ago. Now living under the watchful eye of in-laws, Nao must keep her past connections to Kogetsuan a secret, and Tsubaki may be her most formidable ally yet.

Source: Penguin Random House API