I Was Reincarnated as a Man Who Cuckolds Erotic Heroines, but I Will Never Cuckold Them (WN).

One day I woke up and I was a completely different person.
It was a character in a certain game, who stole the childhood friend of the protagonist that he was in love with.
Characters
Towa Yukishiro: Main character
Ayana Otonashi: Childhood friend of Shu and Towa
Akemi Yukishiro: Towa’s mother.
Seina Otonashi: Ayana’s Mother
Shu Sasaki: Childhood friend of Ayana and Towa
Hoshina Sasaki: Shu’s Mother
Kotone Sasaki: Shu’s sister
Mari Uchida: Junior of Ayana,Towa and Shu
Iori Honjo: Senior of Ayana,Towa and Shu
Takashi Aisaka: Towa’s male friend
Eto Kanzaki: Akemi Yukishiro’s friend