Naruto: Shikamaru's Wife

Shikamaru stumbled upon his classmate who didn't pass her genin test. In her room. And he found himself reading her grandpa's mysterious magical diary, that not only declared him as the hero who will save the world, but also gave him his granddaughter's hand in marriage. Now, will Shikamaru become the hero, or will he become- "I wish I could become a cloud." ... But will Ichinose Eru allow him? Afterall, she is quite- "Troublesome." ... Well, read to find out. (Story will be mainly from Shikamaru's and other's PoV, instead of the OC)