Story
'Overlord' 'God's Blessing on this Wonderful World!' 'Re:Zero − Starting Life in Another World' 'The Saga of Tanya the Evil'.
These four works, which boast sales of over 16 million copies in total and more than 500,000 copies of BDs & DVDs, are now going on a rampage as a mini-character anime!
One day, a mysterious button suddenly appears. If you press it, you'll be transported to an entirely different world!!
And the characters taken from other worlds also gather there...!?
Directed and written by ≪Minoru Ashina≫, character design and overall animation direction by ≪Minoru Takehara≫, animation production handled by ≪Studio Puyukai≫.
The staff team that's been driving the petit character anime world with 'Pure Pure Pleiades', 'Re:ZERO PETIT' and 'Youjo Shenki' are challenging the crossover animation of 4 isekai genre light novels!