it means either different interactions from before or more interactions, some of which are lewd. Penetration is currently only daydreams, but after Level 2 content is done, Level 3 is for Sex.
It has an in game guide. click the circle at the tope of the screen with the image of all the girls faces, but also don't forget to do the daily interactions with the girls throughout the day as some of them change after leveling up. Most is just following the girls through the day, but don't forget to do the cooking, jacuzzi, and movie night. After you dance with the girls it will change as you level them up. One that is easy to miss is the shower scenes. Take a shower at different times of the day to get each girl's events. There wakeup event will also change as they level up.
It's for the level 2 daily events with Sarena that were still missing. This events in level 2 are requirements to play Sarena level 3 events in the future
