𝕁𝕦𝕤𝕥 𝔸 𝕃𝕚𝕥𝕥𝕝𝕖 ℂ𝕙𝕒𝕟𝕘𝕖: A Hananene Book

Have you heard the rumor? Haven't you? Then I'll tell you one of them. This school has seven wonders. The most famous is the seventh of the seven wonders.
In the third stall, in the girl's bathroom, third floor of the old building, lives Hanako San who grants a wish to anyone who summons her.
But in exchange, she takes something precious from them.

"To call her, knock three times and say Hanako San, Hanako San, are you there"

Oh? I'm sorry! I forgot something... His name is TSUKASA SAN OF THE TOILET.

What happens if the twins exchange their places from their rumors. What if Hanako started working for the dead and Tsukasa became the wishmaker of the living ones?

Will the love between the heroes still cease? Or will 'someone else' take her away from Hanako.