Recently, My Sister Is Unusual

When Mitsuki’s mother remarries, she gains an older stepbrother, Yuya. But her new family life takes an unexpected turn when, after a freak accident, she finds herself playing host to the spirit of a young girl named Hiyori. This spectral roommate claims to be a former love interest of Yuya's and insists she needs Mitsuki’s body to achieve her ultimate, unfinished goal. Now, with a persistent ghost dictating her actions and pushing her into increasingly awkward situations, Mitsuki must navigate the complexities of her new home life. As Hiyori’s influence grows, Mitsuki finds herself caught in a bizarre romantic entanglement, all while trying to maintain some semblance of normalcy and understand the true intentions of the spirit sharing her body.

✦ AI-drafted summary