The Demon King Reincarnated into another World

Without any warning, Amakusa Hiiro died. Not because he was hit by a truck or stabbed by someone... but he was died when he tripped and stabbed by his long companion umbrella.

When he woke up, he found himself in another world, and not only that, he found himself as the character from his game [Fantasy Reality Online]. What will be his next move now that he was died and reincarnated into another world?

I know that this will not be the same as the other fantasy novel but please check it out!
Take note that there might be some grammatical issues so at least point out so I can or I will try to change it. Tnx!