Imitator

Satomi is your average older-uke salaryman, a hard worker guy type. When one of his co-worker, Oikawa approaches him, he finds a resemblance between Oikawa and his son -who turned out in the same age as Oikawa. Later when Oikawa invited himself to infiltrate Satomi's house he makes a shocking confession enough to make Satomi falls for him.