If You Cheat, I'll Kill You

The friend who had been teasing the succubus with his thick, luscious tail suddenly collapsed like a puppet with its strings cut.

It happened without warning.

Wondering whether the dream demon had pulled something, I asked with murderous intent, but the succubus only shook her head, saying she had no idea what was going on.

Could something strenuous have happened while I was away?

Of course not. The only place my hikikomori coward of a friend could have gone was his family's home.

Could I have been using yang energy to check his condition and find the cause?

His golden hair and fur began turning silver-white, and soon his eyes opened.

No—to be precise, 'her' eyes opened.

The one responsible for firing a TS beam at my one and only friend.

Unlike my friend's blood-red eyes, they were blue, as if whole sapphires had been embedded in them...