My friend's mother ~Hiroto's mother edition, the second generation leader of Chinsodan~

Ever since her only son, Hiroto, joined the ``Chinsoudan (Bousouzoku)'' and became the second leader, Takaori has had trouble keeping up with Hiroto, whose appearance and personality have changed. Kaori's emotional support is Hiroto's childhood friend, a young man named Koichi. Even after no one gets close to Hiroto due to fear, Koichi continues to care for Hiroto as usual. Kaori also becomes attracted to Koichi, who is such a kind-hearted man, not just as a friend of her son's, but as a member of the opposite sex.