Lucky-kun  

Mura, a high school student who has been labeled as a delinquent, must cope with the arrival of her new stepbrother Subaru when her mother goes on honeymoon. At school, she already deals with rumors and gossip, but things take an unexpected turn when she is involved in a forbidden locker-room kiss and has an incriminating photo taken by shounen-ai fangirls. This marks the first BL work of Takaguchi Satosumi.