Boku wa Ikemen
A manga about overweight and bitter salary man who becomes possessed and taken over by the ghost of his recently deceased good looking co-worker. Now his ghost co-worker is trying to fulfill his undying wish of proposing to the office beauty.
This is done by the same creative team that did Naraku no Hitsuji and while you can see similar themes of self-hate and dark personalities this is a complete 180 in tone from that book. I thought this series was well done and liked a far better than Naraku no Hitsuji. In particular, the rival girl was a really interesting and dark character that they gave a lot of depth to.
~dakazu