Board Thread:Update Hype/@comment-5961028-20160227024705/@comment-24908808-20160227235716

The succubus was summoned through an upperclassman with a tribute of blood, and only those who love that upperclassman remain while everyone else disappears.

If Yandere-chan were to summon it using her own blood, Senpai will disappear. Even then, she can't hurt herself in-game.

Senpai is out of question.

As for other upperclassman, Yandere-chan will disappear since she only loves Senpai.