LF doujinshi a dark skin magical girl in a gangbang

I believe the manga starts with the either tanned or dark sinned girl with dark hair and either ponitails or pigtails that don't go bellow her shoulders, in a school uniform, walking on a countryside-like road. An alien or monster appears and she jumps and transforms using what i remember being a living plushie to assist, i might be wrong on that. the transformation happens with some visuals of white circles/spheres.

after that i don't remember how that concludes but then she's at home at night, with her apparent love interest, a guy with little beard as if it's just growing again (he's older than her) if i remember correctly they get in some sort of argument and she runs away, during that another girl resembling lucoa from maid dragon, but without the horns, makes a little appearence but i'm pretty sure nothing happens with her, probably because it had more chapters

after storming out, the dark skinned girl come across some guys or she find herself directly into a hotel room with those guys, they start having their way with her and i think the most iconic part is how her underwear is a bikini so the guys untie it and tie her biottoms again in a way that the bikini acts as loincloth. in that state there's a penetration we just bearly see implied through, as it's covered by the bikini, eventually i'm pretty sure we see everything. not sure but they might have been filming the whole thing

after all is done, she is seen walking away and the guy who she had the argument at her or his home is seeing looking for her. can't remember if he saw her or just missed her

for some reason it's in my mind that that gangbang ended up being a (bad) dream either the guy or the girl had

the bikini part is also used in at least other drawing i'm pretty sure, but can't find any of this artist works or remember who they are