From BLAH:

Blackmail... a powerful tool of coercion. Although Tsukasa is not the most innocent kind of boys, he is victimized to its merciless grip in this touching short story that depicts the bittersweet trials of youth and the betrayals littered throughout its passage. Though life may seem less than pleasureable at first, it can only make one stronger as time progresses... Yet, that has nothing whatsoever to do with this one-shot. It shocks, it disturbs, but most of all teaches us to never get caught crossdressing!