Problem Children Are Coming From Another World, Aren't They?

Problem Children are Coming from Another World, aren't they? (Japanese: 問題児たちが異世界から来るそうですよ? Romanji: Mondaiji-tachi ga Isekai Kara Kuru Sō Desu yo?), also known as Mondaiji (問題児), is a Japanese light novel series written by Tarō Tatsunoko and illustrated by Yū Amano. An anime adaptation by Diomedéa aired from January 11, 2013 to March 15, 2013.

A sequel to mondaiji titled Last Embryo began serialization on June 1, 2015 with a new illustrator, Momoko.

Plot
Sakamaki Izayoi, Kudou Asuka, and Kasukabe Yō have tremendous powers and are bored with the regular world. An envelope arrives for each person, and when each opens their envelope, they are stunned to see the scenery around them change to a world they had never encountered before. They've been summoned by Kuro Usagi to help the community "No Name" to overthrow the Demon lords.

Main
Sakamaki Izayoi

Kudou Asuka

Kasukabe Yō

Black Rabbit

Others
Jin Russell

Shiroyasha

Leticia Draculea

Lily

Calico Cat

Last Embryo
Saigou Homura

Kudou Ayato

Ayazato Suzuka

Tokuteru Mikado

Black Rabbit

Part 1
The series is published by Japanese Publishes Sneaker Bunko. Currently the series is being translated by fan translation group Baka Tsuki. The series can be read here. Give credit to the translators!

Part 2
Last Embryo is the sequel/part 2 of Mondaiji tachi ga isekai kara kuru sou desu yo? The series remains published by Sneaker Bunko with the same author but a new illustrator, Momoko