Here is the full list of all 10 Tsundere Idol achievements.
Start off soft and then get really hard, in your teaching of course.
Kota bites the bullet but gets the girl?
There is more than one way to pump an idol full of energy.
Dating an idol is a walk in the park.
Or secrets, or sediment, or servers, or uh you get the point.
Soon Rui will assimilate all minds of all peoples.
This idol really is knot one to be tied down.
Now look what you've 'maid' me do...
I guess this is proof love can bloom even on a concert stage.
Being an idol was never her #1 goal anyway...