Kami to Sengoku Seitokai Chapters

'...if you actually decide to go for it... and do become president of the student council..'
'...i'll let you have your way with me'

'This school... is at the center of the entire universe'

'I belong to you... Musashi.'

Those were the words of Vice President of the Student Council, Kagura Mami that were said to Katsuragi Musashi on the first day they met.
What's the secret of that school? What's the mystery behind it all? And what's the past that haunts Kagura and Katsuragi?