Honestly I will give it to you. It's a orgy swinging porn story. Basically u are reading it to jerk off. It reminds me of Korean softcore porn movies. (I am not very familiar with webtoons, maybe this his how they are written?). Every character is there is have sex with each other...lot of steamy sex every chapter. Really good if u are in it for being horny. But after everything is done, it's kind of traumatizing and toxic in reality. These people are not relationship material at all and just forced into a happy ending or workable relationship because of story. Realistic endingwould be both spouse realising they just want to have sex with people and their baby is just a excuse they are clinging on to for the entire story. They are just not suited for any serious relationship with anyone other than open relationship.

But oh well! This is supposed to be wish fulfilment through and through. So yeah after steamy sex with 100s of people, they realised they are ment to be with each other. So they got a happy ending where somehow their relationship worked till their son grew up.

Hey atleast, There is a really good drama version of it when it's not about porn.