Introducing a quiz app for the popular game "Undertale".
We issue a wide range of problems from manga, anime, etc.
There is a world of "undertale" that you do not know yet.
From simple problems to maniac problems,
How many questions can you solve? Aim to get all the questions correct.
It is an unofficial app.

[Recommended for such people]
・ Fans of "undertale"
・ Those who want to know more about "undertale"
・ Those who are confident in their knowledge of "undertale"
・ Those who want to have fun in their spare time
・ Those who want to play a quiz app
・Those who want stories to talk about.