Fan Fic Idea 16 {Zabuza (from Naruto) X how to train your dragon}

Zabuza in the world of how to train your dragon {here is my idea on how it could start} When Zabuza died from all the blade wounds he finds himself in a dark room he sees a old man that looks at him softly and told him he has hurt a lot of people but he has also been hurt and hopes in his next life he helps more people then to hurt them (I'm picturing a old Keanu Reeves ) He then told him he will be sent to another world to live a better life he said he he can have 2 wishes Zabuza asked for a unlimited storage to keep his weapons and medicine and a unlimited library so he can learn to be better the old man said yes to both ( you don't have to make these requests in your story this is just my idea to inspire someone who might make this a story) then he arrives in a forest... (you can pick the time line I was thinking the rise of berk series) [ Authors Note : if you make this a story can you tell me so i could read your story]