Накамеґуро Йошікі

Nakameguro is Ken and Minatsu's classmate. He transferred to Hekiyou Academy since he was bullied by his classmates at the previous school. He likes Ken better than pushy Space Siblings but Ken does not want to become too close to him because he has the same surname as the character of Mafuyu's BL novels by coincidence. (Source: Wikipedia)