If this adaptation stay truthful to the adaptation and the pace that they are going in. The first kiss is gonna be roughly around 40 chapters away (graduation) and the first sexual interaction, not exactly penetrative but close to it is around 60+ chapters away. This is gonna be a slowburn guys.
i read the novel (literally just witnessed the first sexual interaction they had rn)
this is the exact chapter/part we left off. https://novelbin.com/b/eighteens-bed/chapter-72
i rated this 4/5 overall for the whole story but these side stories are all so cute and perfect that im tempted to give it 5 stars! i just love how everyone around sunshine loves him and wants to protect him and my goodness they are one of the healthiest couple from a borderline yandere seme. I cried so much during the mom part, it really tugged my heartstrings.