https://www.dlsite.com/maniax/work/=/product_id/RJ01135352.html
This game just released today, definitely worth a visit. Tons of blown kisses, hearts, kiss scenes, and even a giantess kissing scene as well. Really enjoyed the top down shooter type of play with lots of weapons and addons to mess around with against the bosses.
The demo only has one scene with the first boss and a couple scenes with the second boss but stops there (you dont get access to the first boss in the trial, just the standing sex scene in the first mission). You can immediately unlock all scenes in the game from the gallery you can view from the start in the inn, but I do recommend actually playing it, spent about 2-3 hours going through all the bosses and rematches.
Apparently this is a spin off to a work they're currently working on as well (the endings show this).