花鶏のオーナーでもある優衣の叔母・沙奈子が長い旅行から帰ってきた。だが沙奈子は蓮が気に入らないのか、さっそく蓮と衝突。一方、真司が取材で出会った、弁護士・北岡秀一。やがて北岡ともども、真司は怪しい男たちに追われるハメに……。
Yui is pursued into finding a man by her visiting grandmother, while Shinji encounters a lawyer who brings forth trouble around every corner. In the meantime, Reiko meets an old man who claims he owns some of the mutated species he found near a river bank.
