(Akihabara Chou Doujinsai) [Diogenes Club (Haikawa Hemlen)] Hibiki to Asedaku Training | Sweaty Training With Hibiki (Dumbbell Nan Kilo Moteru?) [English] {Doujins.com}
Calorie burn is an imprecise science, but most calorie burn happens over time. Knowing Hentai Rule #4: Time between panels/pages ranges from < 1 second to infinity, unless otherwise stated they could have been there (working out/ banging ) for hours.
They should have added a scene of Hibiki's JOJO form.
Base +6, bigscuba +7, Shurikensei +9, MechWarriorNY +10