Comprehensive Comics: Beginning

At the end of the world, there will be very few humans left. Sell your soul to the devil and travel to the second dimension world. Break biological limits and get stronger every day. Live the life of a rich man every day, But who knows, Rias suddenly comes to her door and is forced to get involved in the struggle between wealthy families. Live happily ever after. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.