yodogiyo

Ash is a young boy who has always dreamed of becoming a Pokemon trainer. At age 11 he is gifted his first Pokemon, Pikachu, from Professor Oak.

Sora and Shiro are a pair of siblings, brother and sister, who are well known as brilliant. Yet they are NEETs - useless to society, and (Not in Education, Employment, or Training) - and even worse they are completely house-locked shut-ins (hikikomori!

In Mikado City, a "gate" to a different world is opened suddenly one day. Monsters called "Neighbors" start appearing from it, everyone is afraid of them because Earth's weapons don't work against them, but a mysterious group starts fighting off the Neighbors.