For the past year the reader has had this strange ability, that makes his like function like a game. His town, small, but with the occasional crime, like a Bank Robbery or a mugging. He stops crimes mainly with his Summon monsters, but Grinds like hell in Instant Dungeons, searching for rare items, completing missions, and preparing for any danger, the complete opposite of his Carefree nature. During the Thanagarian invasion he heads decides to finally act, and save the Justice League members.

Spirits: [As you kill monsters there is a chance that they will leave behind something called a Spirit that you can collect.]

[Spirits have multiple uses, all of them useful.]

[First of all you can equip them like accessories to boost your stats.]

[You could also merge a Spirit into a weapon or piece of armor to grant it special properties.]

[You could also choose to reform that Spirit into an item that is dependent on what the Spirit is.]

[Lastly, you could choose to summon the monster that the Spirit came from to fight on your side.]

[You can find Spirit's under the now unlocked Spirits tab in your menu.]

[There are two ways a Spirit can get stronger, the first is simply by using them as summons or accessories, the second is by merging Spirit's of the same monster. Once a Spirit gets strong enough it can evolve into a stronger form- So be sure to experiment.](I got this from a Highschool DxD self insert called, "Devils, Angel's, and A Gamer" on Fanfiction.net, go check it out)