Seductive Crossover
Monika (ddlc), Ochaco Uraraka, Mikasa Ackerman, and Akeno Himejima making sexy poses in front of a large mirror. The girls are facing towards the mirror and the camera angle is from behind them, so their backs/butts are visible and all characters front sides of their body should be visible in the mirror reflection like this
External . Monika is wearing the white leotard with collar like in first reference image (without the rope and cape), Ochaco is wearing the grey leotard with collar in the second reference, Mikasa is wearing the red leotard in the third reference, Akeno is wearing the lace turtleneck leotard like in the fourth reference (without the coat and necktie). All the girls' leotards are thong leotards so the characters' butts should look like this
External from behind.
All the girls have toned bodies and are making extremely seductive/naughty faces with their tongues out.