Beyond Scandalous Seiryo University (2005)

Blurb:
Hajizume was ruthless working his way up to student Council President. He stepped on toes and even used physical force when it was necessary. Unfortunately, when you acquire status through force it can come back to haunt you... and even those you love. Now Mizonoi is in the crossfire, but can it be any worse than what Mizonoi does to him in the bedroom?

Source: www.anisearch.com/manga/1792