I don't think you understood the story. Everytime he woke up the next morning he could only remember stuff from right before he blacked out meaning he was still conscious. Camilo stopped there and never went further. Two would remember and still come every night for drinking practice and they always agreed that if he becomes drunk quickly the punishment would be a kiss. They both agreed to it. When Camilo wanted to take it further but Teo was hesitant he stopped. It mostly ended with a kiss and only progressed when Teo admitted he wanted to continue with the trial but was not sure if he have sex which again Camilo agreed to. It was an unspoken agreement which is common in sex. Teo knew that when he gets drunk and Camilo takes care of him he would ask for a kiss. It was consensual

This whole dynamic was basically rape — Camilo doing things to Teo who was completely wasted and not in his mind at all (and even passed out one time) and never stopping when he repeatedly pleaded so. Yeah at chapter 5 we learned Teo was actually into it, BUT CAMILO COULDN'T KNOW AND HE SHOULD HAVE STOPPED, WHAT THE FUCK?????? Also absurd that he started to care about consent only after they became an actual thing, it totally feel like he groomed Teo into their relationship, WTF.
The art was very pretty tho, and the setting and characters very well crafted,(and I had payed money on the physical copy), so I didn't drop this but finished (and I'm also giving extra points because of those positive aspects).