Sonan Jyanaiyo - Lineage tree. !!! SPOILERS !!! *** *** *** *** *** *** *** *** *** *** Shunji (younger) and Kouichi (older) are brothers Shunji = Shizuka’s father Kouichi = Shizuka’s uncle Nanase = shizuka’s aunt Kouichi + Nanase = husband & wife, maried when they were in university, had no natural children together. Shunji was in love and slept with Nanase (his brother’s wife) when in university before marying Ryoko. Shunji + Nanase (adulteress) & born = Retsu Kouichi recognised Retsu as his child. Shunji + Ryoko got married & born = Shizuka At the exact same time that Nanase was cheating with Kouichi’s brother, Kouichi had an affair with Nimura’s Mother, Haruka. Kouichi (uncle) + Haruka & born = Tetsu Nimura’s mother, Haruka abandonned Tetsu. Tetsu was adopted by Shunji and Ryoko. Nimura and Tetsu = half brothers Tetsu and Retsu = cousins (their fathers are brothers) Shizuka and Retsu = same biological father. Shizuka and Tetsu = cousins (their fathers are brothers).
Sonan Jyanaiyo - Lineage tree. !!! SPOILERS !!!
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Shunji (younger) and Kouichi (older) are brothers
Shunji = Shizuka’s father
Kouichi = Shizuka’s uncle
Nanase = shizuka’s aunt
Kouichi + Nanase = husband & wife, maried when they were in university, had no natural children together.
Shunji was in love and slept with Nanase (his brother’s wife) when in university before marying Ryoko.
Shunji + Nanase (adulteress) & born = Retsu
Kouichi recognised Retsu as his child.
Shunji + Ryoko got married & born = Shizuka
At the exact same time that Nanase was cheating with Kouichi’s brother, Kouichi had an affair with Nimura’s Mother, Haruka.
Kouichi (uncle) + Haruka & born = Tetsu
Nimura’s mother, Haruka abandonned Tetsu.
Tetsu was adopted by Shunji and Ryoko.
Nimura and Tetsu = half brothers
Tetsu and Retsu = cousins (their fathers are brothers)
Shizuka and Retsu = same biological father.
Shizuka and Tetsu = cousins (their fathers are brothers).