ML had s*x with FL, and then the ML's wife came and FL caught them having s*x in the kitchen. ML even ejaculated inside his wife while FL was watching.

I have deep aversion to cheating, and that scene of ML having s*x with his wife after FL... and even coming inside her... will seriously turn me off smuts for a while.

The daddy kink exists in this novel. Some of the tags you can expect to see are handjob, bl**job, titjob, food play, 69, cr**mpie, s*x toys, lactation, and more as there is descriptive smut in just about every chapter. There are a ton of public scenes and even one where the FL and ML do it in front of his wife. More on that below.

The wife was in love with a married man. After she became pregnant, he told her to abort the child and abandoned her, but she didn't want to give up on him. She was friends with the ML, and after he got drunk one night, she suddenly came to him and told him she was pregnant, so they got married. He wasn't even sure if they actually had s*x, but he did care for the baby like he was his own. The baby got sick often and suddenly died when he was only one year old. The relationship between the ML and his wife was terrible after that, and he blamed himself for the baby's death. One day, he wanted to repair their relationship and went to the hospital (his wife's a nurse) with a bouquet of flowers. There, he overheard his wife arguing with a doctor and discovered that the baby was actually the doctor's, and his wife had deliberately made the baby sick by putting him in cold baths and whatnot so she would have an excuse to see the doctor. The ML actually loved the baby, so he was furious and was already planning for divorce (he had people gather evidence of her adultery) before the FL arrived.

The ML is 10 years older than the FL and makes a move on her in the very first chapter. This might make you question his morality since she was a stranger (as well as an old friend's daughter) and just barely legal, though the FL responds with equal enthusiasm. Her response could be explained by her rebellious bad girl nature (she skips school all the time and was expelled from her previous school by the start of the novel), but the ML... yikes. There is also a scene where the ML goes on to have s*x with his wife (just because she asked and he saw no reason to decline) right after doing it with the FL, which is pretty dirty imo. It also makes me question whether he really loves the FL as he claims in the ending (though in the sequel smut novel, they're engaged and living together while she attends university) or if he's just using her for revenge. The FL confronts him about it afterward and they have s*x again (that same day) because the author's gotta keep that smut going, but it really makes me wonder wtf is going on in the ML's brain.