User blog comment:B214/Volume 17 spoilers./@comment-3125355-20140221173240/@comment-79.11.17.217-20140221191313

Longinus are only 13. But some sacred gear could become a longinus and Gasper has the power to reach that class (he defeated Georg in 2 seconds and he has one of the strongest longinus). But he doesn't reach that class officially.